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Migrating
birds fly
huge distances. As you can imagine, these journeys are adventurous and
really exhausting.
One
of the most adventurous and dangerous ones is the journey across the deserts,
because deserts are hot and vast.
It
takes the birds a long time to cross them and at the end the birds are
really exhausted!
Climate
change increases the temperature in the deserts. The very hot weather
means it rains less in the deserts and the regions around them. Without
the rain, the soil gets drier and the deserts get even bigger. So the
birds’ long flight gets even longer and more exhausting.
At other places on Earth birds do not face problems of crossing deserts.
They face other challenges caused by climate change. When the weather
gets warmer, due to climate change, the vegetation in some of the birds’
habitats, such as the tundra, changes.
The
tundra is a landscape very near the North Pole. It is a very cold place
all year round, and it is so cold that the soil freezes and no trees can
grow. It has a frozen and moss-covered ground and while we would freeze
stiff, birds feel comfortable there and breed on its rocky grounds.
However,
the warmer temperatures thaw the ground and let trees grow. This means
that the birds cannot breed in the tundra anymore.
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