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Roof of the world melting away?
Expedition to Tibetan Plateau reveals devastating consequences of global warming
13 October 2005
A 31-year-old Tibetan woman at her home in Yellow River township. Once she lived well from the profits off her animals. Now, due to climate change, she is reduced to a life of poverty.
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The Tibetan Plateau is often referred to as the roof of the world, land
of high peaks, glaciers and nomadic tribal peoples. The snowy peaks and
glaciers are the source of many of Asia's mightiest rivers - the
Ganges, Mekong and China's Yellow River. This area is predicted to warm
considerably before 2100 due to global warming. The roof of the world
is melting, and melting fast.
So what's the big deal about a little less ice in a place full of the stuff anyway? Actually it's a disaster for the region now, and the ramifications may yet be felt across the globe. We visited the region to highlight the impacts of the changing climate of the Tibetan Plateau.
As the area warms less rain is falling and glaciers in the region are melting. Local communities used to make a living of their herds of animals grazing on lush mountain pastures. Now those pastures are fast turning to desert due to lack of water, overgrazing and erosion caused by new animals that are thriving in the warmer conditions. Many local people now survive solely on government handouts.
On
our expedition to the region we travelled on "dancing roads" distorted
by melting permafrost to meet the governor of Madoi County. In 1980, Madoi was
China's richest province due to its agricultural wealth. It is now China's
poorest. We interviewed once-prosperous, but now destitute,
farmers and saw first hand the desert gobbling up pasture land.
Climate change is causing a cocktail of environmental effects at the Yellow River source that threaten an ecological breakdown. When you see the empty wells, bridges over nothing but dry dirt, cracked ground where there should be lakes, bare rock and sand where it was once healthy grassland you know something is seriously wrong.
See more impacts in the region at our Yellow River site in English or Chinese.
While the immediate impacts on the area are bad enough they pale compared to the possible future impacts in the rest of China. The Yellow River has fed China's people since time immemorial. Today, 120 million Chinese people, a tenth of China's population, rely on the river, especially for irrigating crops. As well as being known as China's 'mother river', is also dubbed the 'cradle of the Chinese civilization'.
Now
the mother river is drying up at its source. In many places on
the upper stretches the flow is much reduced. If the flow of the river
continues to decline it threatens the food supplies for a large part of
China's population.
But this isn't just a problem for China. Many of Asia's rivers begin on the Tibetan Plateau. If it continues to dry this could affect many of these rivers and the millions of people who rely on them. As well as water shortages, scientists predict that rising temperatures will reduce the rice crops that are the staple food for more than half of the world's population.
How would the world feed millions of people who cannot rely on locally produced rice?
The Yellow River source region is an urgent warning that climate change is harming people now and is going to get worse. The Yellow River story is not just about China, it's a warning signal that we need worldwide action on global warming.
A little less ice
So what's the big deal about a little less ice in a place full of the stuff anyway? Actually it's a disaster for the region now, and the ramifications may yet be felt across the globe. We visited the region to highlight the impacts of the changing climate of the Tibetan Plateau.
As the area warms less rain is falling and glaciers in the region are melting. Local communities used to make a living of their herds of animals grazing on lush mountain pastures. Now those pastures are fast turning to desert due to lack of water, overgrazing and erosion caused by new animals that are thriving in the warmer conditions. Many local people now survive solely on government handouts.
On
our expedition to the region we travelled on "dancing roads" distorted
by melting permafrost to meet the governor of Madoi County. In 1980, Madoi was
China's richest province due to its agricultural wealth. It is now China's
poorest. We interviewed once-prosperous, but now destitute,
farmers and saw first hand the desert gobbling up pasture land.Climate change is causing a cocktail of environmental effects at the Yellow River source that threaten an ecological breakdown. When you see the empty wells, bridges over nothing but dry dirt, cracked ground where there should be lakes, bare rock and sand where it was once healthy grassland you know something is seriously wrong.
See more impacts in the region at our Yellow River site in English or Chinese.
While the immediate impacts on the area are bad enough they pale compared to the possible future impacts in the rest of China. The Yellow River has fed China's people since time immemorial. Today, 120 million Chinese people, a tenth of China's population, rely on the river, especially for irrigating crops. As well as being known as China's 'mother river', is also dubbed the 'cradle of the Chinese civilization'.
Now
the mother river is drying up at its source. In many places on
the upper stretches the flow is much reduced. If the flow of the river
continues to decline it threatens the food supplies for a large part of
China's population.Alarm bell for the world
But this isn't just a problem for China. Many of Asia's rivers begin on the Tibetan Plateau. If it continues to dry this could affect many of these rivers and the millions of people who rely on them. As well as water shortages, scientists predict that rising temperatures will reduce the rice crops that are the staple food for more than half of the world's population.
How would the world feed millions of people who cannot rely on locally produced rice?
The Yellow River source region is an urgent warning that climate change is harming people now and is going to get worse. The Yellow River story is not just about China, it's a warning signal that we need worldwide action on global warming.
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