desertsare areas thatto getvery littleprecipitation🇧🇷 People often use the adjectives "hot", "dry" and "empty" to describe
deserts
But these words don't tell the whole story. despite some
deserts
They are very hot by daytemperaturestwice 54°C (130°F),
deserts
they have cold winters or they are cold all year round. and the majority
deserts
, far from being empty and lifeless, are home to a variety of plants, animals and other thingsOrganisms🇧🇷 People havecustomizednot for life
Desert
to youStrandof years.
one everything
deserts
have in common that they aredry, or dry. Most experts agree that a
Desert
is a property
to get
no longer than 25 centimeters (10 inches).
precipitation
a year. The amount ofevaporationin one
Desert
often a lotexceedsaYearlyRain. through
deserts
, there is little water available for plants and other things
Organisms
.
deserts
are found in everyonecontinentand cover about one-fifth of the Earth's land surface. They are home to around a billion people, a sixth of the world's population.
Although the word "
Desert
can evoke a sea of change
Arena
,sand dunesThey only cover about 10 percent of the world
deserts
🇧🇷 None
deserts
they are mountainous. Others are dry patches of rock,
Arena
, Ösalt pans.
types of deserts
of the world
deserts
It can be divided into five types: subtropical, coastal,Rain Treasures, inner and polar.
deserts
They are classified into these types according to the causes of their dryness.
subtropical deserts
Subtropical
deserts
are caused byTrafficrules ofair masses🇧🇷 You can find them everywhereTropic of Cancer, between 15 and 30 degrees north ofEcuador, or continuouslyTropic of Capricorn, between 15 and 30 degrees south of
Ecuador
.
Warm, moist air rises into the nearby atmosphere
Ecuador
🇧🇷 As the air rises, it cools and loses its moisture in the form of heavy tropical rains. The coldest and driest result
mass of ar
moves away from
Ecuador
🇧🇷 As you approach the tropics, the air sinks and warms up again. the air that descendsupsetThe formation ofClouds, so very little rain falls on the land below.
the hottest in the world
Desert
, the Sahara, is a
subtropical
Desert
in North Africa. EITHERSarah's desertit is almost as big as anyone
continental
UNITED STATES OF AMERICA. Miscellaneous
subtropical
deserts
including the Kalahari
Desert
in southern Africa and Tanami
Desert
in Northern Australia.
coastal deserts
cold oceanTwo of uscontribute to the creation
Coastal
deserts
🇧🇷 Air blows towardsCosta, cooled by contact with cold water, creates a layer offog. so hard
fog
drift ashore. In spite ofhumidityis biggeratmospheric changesthat normally cause rain are not present. A
Coastal
Desert
however, it can be almost entirely without rainnasscom
fog
.
ÖAtacama Desert, not Pacific
Stripes
from Chile, is a
Coastal
Desert
🇧🇷 Some areas of the Atacama are usually overcast
fog
🇧🇷 But the region can godecadesWithout rain. actually the
Atacama
Desert
It's the driest place on earth. noweather stationsThere has never been a drop of rain in the Atacama.
Rain Shadow Deserts
Rain Treasures
deserts
it is closeLee-gradients of somemountain ranges.
Lee
rear slopesprevailing winds.
When moisture-laden air reaches a
mountain range
, have to get up. Then the air cools and forms
Clouds
release the moistureLuv(Windgradients). When the air rushes over the top of the mountain and begins to descend
Lee-
Slopes, there is little moisture. The descending air heats up and makes it difficult
Clouds
To form.
worth dying for, in the US states of California and Nevada, is a
Rain Treasures
Desert
.
worth dying for
, the lowest and driest place in North America, is in the
Rain Treasures
of the Sierra Nevada mountains.
inland deserts
Inner
deserts
who are in the heart of
Continent
, they exist because there is no moisture
Winds
You reach. for the moment
air masses
from the coastal areas inland they lost all their moisture.
Inner
deserts
sometimes also called internal
deserts
.
ÖGobi desert, in China and Mongolia, is hundreds of kilometers from the ocean.
Winds
that reach the Gobi have long since lost their moisture. The Gobi is also in the
Rain Treasures
from the Himalayas to the south.
polar deserts
parts ofArcticIt is inAntarcticaare classified as
deserts
🇧🇷 Die
Polar-
deserts
contain large amounts of water, but most of it is stored in themglaciermiicecapall year round. Despite the existence of millions of liters of water, plants and animals have little at their disposal.
most
Desert
it is also the coldest in the world. most
continent
again
ant
Arctic
It is a
Polar-
Desert
, experiences little
precipitation
🇧🇷 Any
Organisms
frost-resistant, dryair-conditionedagain
ant
Arctic
.
changing deserts
The regions that are
deserts
Today it wasn't always so dry. Between 8,000 and 3,000 BC For example, in the Sahara, a much more moderate and humid climate prevailed.
air-conditioned
.The climatologistrefers to this period as "will be green.“
ArchaeologicalEvidence of past settlements abounds
dry
, unproductive areas of today's Sahara. This evidence includes cave paintings,gravesand tools.fossilsmiartifactsshow that linden and olive trees, oaks andloendrosonce flourished in the Sahara. Elephants, gazelles, rhinos, giraffes and humans used ponds and ponds fed by streams.
There were three or four more rainy seasons in the Sahara. SimilarlozanoConditions that existed only 25,000 years ago. Between the rainy periods came dry periods very similar to those of today.
The Sahara is not the only one
Desert
have dramaticof climate change. But GhaggarRio, in what is now India and Pakistan, was an important source of water formohenjo-daro, aurban areaagainthe old the Indus Valley Civilization🇧🇷 Over time, the Ghaggar changed course and only flows during the rainy season.MonsoonSeason.
mohenjo-daro
now part of the vast Thar and Cholistan
deserts
.
most of the earth
deserts
will continue to go through periods of
air-conditioned
change
.
Desertfeatures
humidity
-aguasteamin the air - in most it is almost zero
deserts
🇧🇷 Light rains often and
subdued
in dry air, never reach the ground. The storms come so hard sometimestake a shower🇧🇷 SAME
downpour
can bring up to 25 centimeters (10 inches) of rain in a single hour - the only rain that is
Desert
received all year round.
Desert
humidity
it is usually so low that there is not enough water
steam
exists to form
Clouds
🇧🇷 The sun's rays went through
without clouds
heaven and earth roast. The ground heats the air so much that the air rises in waves that you can actually see. These bright waves confuse the eye, causing travelers to see distorted imagesmirages.
Temperature
Extremes are one
special feature
the majority
deserts
🇧🇷 For some
deserts
,
temperatures
climb so high that people are in dangerdehydrationand even death. At night, these areas cool down quickly because they don't have itIsolationprovided by
humidity
mi
Clouds
.
temperatures
it may drop to 4°C (40°F) or below.
no chihuahua
Desert
in the United States and Mexico,
temperatures
it can fluctuate tens of degrees in a day. Day
temperatures
in Chihuahua it can exceed 37°C (100°F) at night
temperatures
it can drop below zero (0°C or 32°F).
Winds
at speeds of around 100 kilometers per hour (60 miles per hour) it sweeps somewhat
deserts
🇧🇷 with littleVegetationto block it that
Wind
can load
Arena
miStaubthrough
Continent
and even oceans.
storms
In the Sahara, they throw as much material in the air as the Africans
Staub
sometimes it crosses the Atlantic. For example, sunsets on the Atlantic coast of the US state of Florida can be bathed in yellow.
first-time visitors
deserts
They are often surprised by the unusuallandscape, which may include
sand dunes
bare, towering peaks, smoothly polished, flat rock formationsguns🇧🇷 These properties differ from those of wetter regions, which are generally smoothly rounded and smoothed out by regular rain
lozano
Vegetation
.
Water helps shape
Desert
lands water during a sudden stormschrubbenthe dry and hard land gathers
Arena
, rocks and other loose material as it flows. As the muddy water rushes down the slope, it cuts deep channels calledstreamsÖDrive🇧🇷 SAMESturmcan emit a fast-moving stream of water - aflash flood- dry below
Strom
🇧🇷 SAME
flash flood
so that he can sweep away anything and everyone in his path. A lot
Desert
regions of
scourge
Hiking or camping visitors in
streams
for this reason.
up to
City areas
Inside
deserts
may bevulnerablethrough
floods
🇧🇷 The city of Jeddah, Saudi Arabia is located in Arabia
Desert
🇧🇷 In 2011, Jeddah was struck by a sudden blow
Sturm
mi
flash flood
🇧🇷 Roads and buildings were destroyed and more than 100 people died.
even in one
Desert
, Water and
Wind
eventually wear away the softer rock. Sometimes the rock is carved in the shape of a table, such asTable MountainsmiSierras🇧🇷 At the foot of these formations, the water releases its chargeimportant,
Arena
, and other sediments, form deposits calledSwimming lessons.
A lot
deserts
Has notseweragefor one
Rio
, lake or ocean. Rainwater, including runoff
floods
, collects in large depressions calledpool🇧🇷 The shallow lakes that form in it
pool
possibly and
subdued
, to suitbeaches, or lake beds with a salty surface.
beaches
, also sinks, pans or
salt pans
, it can be hundreds of kilometers wide.
the black rock
Desert
in the US state of Nevada, for example, it is all that remains of prehistoric Lake Lahontan. The hard, flat surface of
Desert
salt pans
They are generally ideal for auto racing. In 1997, British runner Andy Green set the Black Rock speed record.
Desert
—1,228 kilometers per hour (763 miles per hour). Green's vehicle, the ThrustSSC, was the first car to feature thesound barrier.
Vento
and theprimarysculptor one
Desert
hill of
Arena
, I call
sand dunes
.
Vento
to build
sand dunes
that reach 180 meters (590 feet).
sand dunes
emigrateconstantly with the
Wind
🇧🇷 They usually move a few meters a year, but a particularly violent movement
Sandsturm
can move you
there
20 meters (65 feet) in a single day.
sandstorms
They can bury anything in their path: rocks, fields, and even cities. A legend says that the Persian emperorKambyses IIsent an army of 50,000 men to Siwabonesin western Egypt around 530 BC. Halfway, agigantic
Sandsturm
swallowed the whole group.archaeologistssince then they have been looking for the "Lost Army of Cambyses" in the Sahara without success.
water in the desert
Rain is usually the main source of water in a
Desert
, but it falls very rarely. A lot
Desert
The neighbors trustgroundwater, savedaquiferunder the surface.
groundwater
comes from the rain or similar
precipitation
like snow or hail. It seeps into the ground where it can stay for you.
Strand
of years.
Groundwater sometimes rises to the surface and formsDocksthe flowers. UNAfruitfulcalled green space
bones
, Öswamp, may exist near such a water source. Around 90 large inhabited oases are located in the Sahara. These oases are supported by some of the largest aquifers in the world. Humans, animals, and plants surround these oases that provide stable access to water, food, and shelter.
When
groundwater
It doesn't seep to the surface, people often dig into the ground to get to it. A lot
Desert
Cities from the American Southwest tomiddle East, rely heavily on such
aquifer
to meet your water needs.ruralso-called Israeli communitiesKibutimto hang out
aquifer
to supply waterThe plantationit is includedfish farmingnot dry Negev
Desert
.
Drill
aquifer
supplies drinking water,Agriculture,Industry, miHygiene🇧🇷 However, this is at the expense of the environment.
aquifer
it takes a long time to fill up. Yes
Desert
use of communities
groundwater
water shortages can occur faster than it is replenished. the mojave
Desert
, in Southern California and Nevada, for example, is decreasing due todepletion of the aquifer. oh boom
Desert
Communities of Las Vegas, Nevada and California”inner realm“consume water faster than humans
aquifer
it loads up. The water level in the
aquifer
dropped up to 30 meters (100 feet) since the 1950s while on land
aquifer
it sank 10 centimeters (4 in).
rivers
sometimes they supply water in a
Desert
🇧🇷 from Colorado
Rio
flows through three, for example
deserts
in the Southwest United States: The Greater
Container
, Sonoran and Mojave. Seven states - Wyoming, Colorado, Utah, New Mexico, Nevada, Arizona and California - have them
Rio
for part of their water supply.
people oftenChange
rivers
for the distribution and storage of water in a
Desert
. You need
Rio
ecosystem Dominado to the eastern part
Make it happen
Desert
, for example. The Nile is the region's most reliable and abundant source of fresh water. Between 1958 and 1971 thegovernmentof Egypt built a huge
Power outlet
not Upper Nile (apart from do
Rio
, near Egypt's border with Sudan). EITHERbut bootyHarness the power of the NileHydropowerused in
Inside
dusty
🇧🇷 It also stores water in an artificial lake, Lake Nasser, to protect communities in the country and
Agriculture
againstseco.
Aswan building construction
Power outlet
it was hugemechanical engineeringProject. location
Desert
communities canevade
rivers
on a smaller scale. Along the
middle East
, the communities dug
Drive
, where fresh water can flow during the rainy season. In countries like Yemen, the artificial use
Drive
can carry enough waterwhite waterRafting tours at certain times of the year.
When
deserts
and water supply extends beyond state and national borders, people often quarrelwater rights🇧🇷 This happened between the states of Colorado
Rio
Container
, What is wrong with thatnegotiatedfor many years about the division of
Rio
is water. Rapid population growth in California, Nevada, and Arizona exacerbated the problem. The agreements made at the beginning of the 20th century were not taken into accountAmerican native
water rights
🇧🇷 The Mexican access to Colorado, which has its delta in the Mexican state of Baja California, was ignored.
Desert
Agriculture
, includedCottonProduction, demanded a lot from Colorado. The environmental impact of
dams
it was not considered when the structures were built. Colorado States
Rio
Container
Go on
Negotiate
today, to prepare for population growth,agricultural development, and the possibility of the future
seco
.
I don't rely on life
plants and animals
fit
through
Desert
habitatsmany ways.
Desert
The plants grow far apart so they can get as much water as possible from their surroundings. eastDistancegive something
Desert
regions toobaldLooks.
In some
deserts
, have plantsSingleLeaves to catch sunlightphotosynthesis, which processing plants use to create food. Little bitcouplesin the leaves, calledStomata, assimilatecarbon dioxide🇧🇷 When they open, they also release water.
steam
. no
Desert
, all these
Stomata
a plant would dry out quickly. To
Desert
The plants often have tiny, waxy leaves.Cactusit has no leaves. They produce food on their green stalks.
no
Desert
plants, like
Cactus
, have little depth, widespreadroot systems🇧🇷 Plants absorb water quickly and store it in theircells. Saguaro
Cactus
who live in Sonora
Desert
from Arizona and northern Mexico, expand like accordions to hold water inside
cells
its trunks and branches. A large saguaro is a living storage tower that can hold hundreds of gallons of water.
Miscellaneous
Desert
Plants have very deep roots. the roots of aJohannisbrotThe tree, for example, can reach water more than 30 meters deep.
mosques
, Saguaros and many others
Desert
Plants also have thorns to protect them from themWeidetiere.
A lot
Desert
the plants are
Yearly
, meaning they only live for one season. Your seeds can lielatentyears of long periods of drought. When it finally rains, the seeds sprout quickly. Plants grow, flower, produce new seeds, and usually die within a short period of time.
Period
from time. A pouring rain can change a
Desert
into a flower paradise almost overnight.
animals that have
customized
for one
Desert
environment are calledXerocol.
Xerocoles
These include species of insects, reptiles, birds and mammals. no
Xerocol
Avoid the sun resting in itsparseThe shade. Many escape the heat in the coldcavesthey dig into the ground. The fennec fox, for example, is at home here
Make it happen
Desert
🇧🇷 Fennec fox communities work together to dig big
caves
, some up to 93 square meters (1,000 square feet).Yescan pick them up
caves
to provide the foxes with fresh water. However, fennec foxes have
customized
so they don't have to drink water at all: theirsflusheskeep enough water from the food they eat.
The majority
Xerocol
SohnNight🇧🇷 They sleep on hot days and hunt and eat at night.
deserts
looks
bald
During the day they are very active in the cool night air. Foxes, coyotes, mice and rabbits are all there
Night
Desert
mammals. Snakes and lizards are familiar.
Desert
Reptiles Insects like moths and flies abound
Desert
🇧🇷 Most
Desert
Birds are restricted to areas near water, such as
Rio
banks. However, some birds, like the roadrunner, have this
customized
not for life
Desert
🇧🇷 The Roadrunner, originally from
deserts
of North America, gets water from its food.
no
Xerocol
They have bodies that help them deal with the heat. A
Desert
The turtle's thick shell insulates the animal and reduces water loss.
Arena
Lizards native to
deserts
from Europe and Asia they are also called "dancing lizards" because they quickly lift one leg after the other to protect themselves from the heat
Desert
Arena
🇧🇷 A rabbit's long ears contain blood vessels that give off heat. no
Desert
Vultures urinate on their own legs, cooling them down
mi
evaporation
.
A lot
Desert
Animals have evolvedfunnyWays to get the water you need. The thorny devil, a lizard that lives in AustraliaOutside, has a system of small grooves and canals on its body that lead to its mouth. The lizard catches the rain and
Yes
into these grooves and sucks them into his mouth as he swallows.
Camels are veryefficientwater user. Animals do not store water in their humps as people believed. Humpback whales store blubber.hydrogen moleculesin fat combine with inhaledoxygento form water. When food or water is scarce, camels use this fatnutritionand moisture dromedary camels, native to Arabia and
Make it happen
deserts
, they can lose up to 30 percent of their body weight without harm. The camels, nicknamed the "Ships of the
Desert
“, are widely used for transport, meat and milk in theMagrebe(a region in north-west Africa), the
middle East
, and the Indian submarine
continent
.
people and desert
About a billion people live there
deserts
🇧🇷 Many of these people rely on worldly customs to make life as comfortable as possible.
civilizationsalong the
middle East
mi
Magrebe
to have
customized
Your clothing for the hot and dry conditions of the Sahara and Arabia
deserts
🇧🇷 the clothes areversatileand based on coats made of fabric rectangles. Long-sleeved, full-length, and usually white, these tunics protect everything but the wearer's head and hands
Wind
,
Arena
, hot and cold. White reflects sunlight and the relaxed fit lets cool air flow over your skin.
These loosely woven tunics can be adjusted (folded) in length, sleeves and pockets depending on the wearer
air-conditioned
🇧🇷 SAMEthobeIt is a full length white tunic with long sleeves. AThe maidsis a sleeveless cloak that protects the wearer
Staub
hot. AandIt is a short, boxy sweater worn by men. ACaféis a rectangular piece of fabric that is loosely folded around the head to protect the wearer from the sun's rays,
Staub
, mi
Arena
🇧🇷 It can be folded and unfolded to cover your mouth, nose and eyes.
Kaffiyahs
They are tied around their heads with a ropeagal🇧🇷 SAMETurbanis similar to a
Café
, but wrapped around the head instead of being secured with a
agal
.
Turban
they are also much longer, up to six meters (20 feet)!
Desert
the residents too
customized
their accommodations for
Single
air-conditioned
. Ö
the old
anasaziThe peoples of the southwestern United States and northern Mexico built huge housing complexes on the rocks.cliffsof sound
Desert
🇧🇷 Die
Cliff
The houses, sometimes tens of meters above the ground, were built with thick earthen walls supporting them
Isolation
🇧🇷 Although
temperatures
very different from day to night outside,
temperatures
not inside. small, big
window
just let in a bit of light and helped keep out
Staub
mi
Arena
.
The need to find food and water has led many to do so
Desert
civilizations
willnomadic.NomadicCultures are those that do not have permanent settlements. In which
deserts
again
middle East
and Asia,
nomadic
The tent communities continueflourish🇧🇷 The walls of the tent are made of thick and durable fabric that can last
Arena
mi
Staub
, but also lets the cool breeze through. The tents can be rolled up and transportedpack animals(usually horses, donkeys or camels).
nomads
They move frequently so that their flocks of sheep and goats have water and pasture.
In addition to animals such as camels and goats, a variety of
Desert
Vegetation
It can be found in oases and everywhere
Stripes
again
rivers
and lakes where figs, olives and oranges thrive
Desert
Oasis and have been harvested for centuries.
no
Desert
The areas dependresourcesI brought too much
fruitful
Territories: Food brought from distant farms, or more commonly running water from wetter regions. large areas of
Desert
are groundwateredB. by water that is pumped or brought from underground sourcesChannelfrom far
rivers
or lakes. The explosion
inner realm
of Southeast California consists of
deserts
(Mojave and Sonora) that depend on water
Agriculture
,
Inside
dusty
and residential development.
channels
miaqueductsprovide
inner realm
with colored water
Rio
, to the east and Sierra NevadathawingNorth.
A multitude of
The plantation
can benefit from it
watered
Bones.sugar caneit is very water intensive
harvest
mainly harvested in tropical regions. Nevertheless,
sugar cane
it is also harvested
deserts
from Pakistan and Australia. Irrigation water is transported hundreds of kilometers or drilled hundreds of meters deep.
oasis in
Desert
Climates
They have been popular tourist attractions for centuries.
spas
touch the Dead Seasaline solutionSee in Judäa
Desert
of Israel and Jordan. The Dead Sea had
blooming
spas
since the time ofKing David.
Air Transport and the Development ofair conditioningmade the sun
air-conditioned
again
deserts
even more accessible and attractive for people in colder regions. Populations in resorts like Palm
Docks
, California and Las Vegas, Nevada grew.
Desert
parks, like
worth dying for
National Park, California, don
Strand
Visitors per year. people, who
emigrate
for hot, dry
Desert
for the winter and return to more temperate climates
Climates
no
spring
will sometimes"snowbirds.“
Within
rural
In certain areas, hot days turn into cool nights, offering a welcome respitecombustionYes. But in cities, structures like buildings, roads, and parking lots retain daytime heat long after the sun has set. EITHER
Temperature
stays high even at night, turning the city into an “island” of heat in the middle of the sea
Desert
🇧🇷 It's calledurban heat islandIt is finished. It is less pronounced in
Desert
Cities as heavily built-up citiessage woodAreas Cities like New York, New York and Atlanta, Georgia can be 5 degrees warmer than the surrounding area. New York was incorporatedwetland
habitat
, and Atlanta was built in a wooded area. Cities like Phoenix in Arizona or Kuwait City in Kuwait have much smaller populations.
urban heat island
It is finished. They may only be slightly warmer than the surroundings.
Desert
.
deserts
may contain economic value
resources
this car
civilizations
and savings mustRemarkable
Desert
Resource
in the world is the massiveThe beer reservenot arabic
Desert
again
middle East
🇧🇷 More than half of those tested
The beer reserve
in the world are below
Strand
from Arabic
Desert
, mainly in Saudi Arabia. oil
Inside
dusty
attracts companies, guest workers, engineers,geologists, mibiologistsfor him
middle East
.
Desertification
Desertification
is the production process
farmland
become unproductive
Desert
-like environments.
Desertification
usually occurs in semi-
dry
adjacent areas
deserts
.
human activities are
primary
cause for
Desertification
🇧🇷 These activities includeovergrazingagainCamera,registration,super cultivationFarmland and poor irrigation practices.
overgrazing
mi
again
resettlement of the forest
Remove plants thatAnkerthe earth. Consequence,
Wind
and watercorrodeanourishing-Rikoonly superficial🇧🇷 grazing hooves
Camera
Compact the soil and prevent it from absorbing waterfertilizer🇧🇷 Agricultural production isdevastated, It's likeBusinessa region suffers.
Ö
deserts
againPatagonia, the largest in South America, are expanding due to
Desertification
.
Patagonia
It is an important agricultural region where non-native species such asCameraand the sheep grazepasture🇧🇷 Sheep u
Camera
reduces the native
Vegetation
Inside
Patagonia
, leading to depreciation
only superficial
🇧🇷 More than 30 percent of
pastures
by Argentina, Chile and Bolivia
Desertification
.
People tend to use too muchnatural resourcesto survive andbenefitshort term whileneglectlong termsustainability🇧🇷 Madagascar, for example, is a tropical island in the Indian Ocean. Seeking greater economic opportunities, farmers in Madagascar turned tocut and burn
Agriculture
🇧🇷 This method is based on cutting and burning
forests
Create fields for
The plantation
🇧🇷 Unfortunately, the farmers then invested in
cut and burn
Agriculture
, Madagascar has experienced long-term
seco
🇧🇷 with little
Vegetation
through
Anker
that, the thin
only superficial
quickly
corroded
🇧🇷 Center of the islandPlateaunow it is barren
Desert
.
Rapid population growth can also lead to overconsumption
resources
, kill and deplete plants
nutrient
for the reason Lake Chad is a source of fresh water for four countries bordering Chad
Make it happen
Desert
: Chad, Cameroon, Niger and Nigeria. These developing countries use the shallow waters of Lake Chad to do this
Agriculture
,
Inside
dusty
, mi
Hygiene
🇧🇷 Since the 1960s, Lake Chad has shrunk to half its size.
Desertification
drastically reduced
wetland
habitats
around the lake, as well as hisfishingand pastures.
Desertification
not new In the 1930s, parts of thegreat plansof North America became the "Puderdosethrough a combination of
seco
and poor agricultural practices. Millions of people have had to leave their farms and find a life in other parts of the country.
Desertification
it's a growing problem. About 6 million square kilometers (2.3 million square miles) of land is made unusable for cultivation each year
Desertification
. Ö
Make it happen
Desert
it slid 100 kilometers (39 miles) south between 1950 and 1975. South Africa loses 300 to 400 million tonnes (330 to 441 tonnes).
only superficial
each year.
Many countries are working to lower rates
Desertification
🇧🇷 Trees and others
Vegetation
are planted to break the force
Wind
and hold the groundwindbreaktrees were planted everywhereSahel, southern border region of
Make it happen
Desert
🇧🇷 Die
windbreak
Anker
or alone and prevent
Arena
to conquer populated areas.
Not Tengger from China
Desert
researchers have developed another method to control wandering
sand dunes
🇧🇷 You
Anker
to drive
Arena
with a grid-like network ofSorbetfences
Sorbet
is partially inserted
Arena
, forming a pattern of small squares along the contours of the
sand dunes
🇧🇷 The resulting fences break the force of the
Wind
on the ground, stop
there
movement, restriction of
Arena
within the grid squares.
New technologies are also being developed to combat it
Desertification
. „with nano sheet' is a sprayed substance
Desert
Strand
which acts as a binder.
with nano sheet
holds the
Arena
wet, stick together and prevent them from flying.
Deserts are heating up
Ascending
temperatures
can have a big impact onfragile
Desert
ecosystems
.global warmingis the most
Indeed
instance of
air-conditioned
change
🇧🇷 Human activities like burningfossil fuelsContribute to
global warming
.
Within
deserts
,
temperatures
they are even growing faster than the world average. This warming has implications beyond just generating heat.
deserts
hotter. For example increase
temperatures
lead to lossnitrogen, an important
nourishing
, Floor. prevent heatmicrobesthe changeover
nutrient
throughNitrate, which are necessary for almost all living things. This can reduce plant lifespan already limited by
deserts
.
Air-conditioned
change
it also affects precipitation patterns.
Air-conditioned
Scientists predict that
global warming
it will result in more rain in some regions but less rain in other places. Areas with a focus on reduction
precipitation
include areas with some of the largest
deserts
of the World: North Africa (Sahara), American Southwest (Sonorense and Chihuahua), South of the Andes (
Patagonia
) and Western Australia (Greater Victoria).
Withinliteratureand in the legend
deserts
are often described ashostilePlaces to avoid Today people appreciate
Desert
resources
mibiodiversity🇺🇸 communities,
governments
and organizations are working to preserve them
Desert
habitats
and increase
Desert
Productivity.
done quickly
a hell storm
Dust swirls are common in hot deserts. They look like small tornadoes, but they start on the ground, not the sky. When areas of land get too hot, the hot air above them begins to rise and swirl. This rotating column of hot air collects dust and dirt. These rotating pillars of earth can reach hundreds of feet into the air.
done quickly
crazy floods
Deserts are characterized by their aridity. However, flash floods claim more lives in deserts than thirst.
done quickly
hot and cold deserts
The largest hot desert in the world is the Sahara at 9 million square kilometers (3.5 million sq mi). However, it is not the hottest place on earth. This award belongs to Death Valley in California's Mojave Desert. The highest temperature on earth was recorded there: 56.7 C (134.1 F).
The largest polar desert is Antarctica at 13 million square kilometers (5 million sq mi). Antarctica has the lowest officially recorded temperature on Earth: -89.2 C (-128.6 F) recorded on July 21, 1983.
done quickly
rose from the ashes
The desert city of Phoenix, Arizona is named for the mythical desert bird that cremates only to be reborn and rises from its own ashes. The city of Phoenix was built on the ruins of canals built by the Hohokam people between 500 and 1450 AD. The Hohokam used the canals to water their crops. Modern residents also rely on an extensive canal system for irrigation.