How has climate change affect the glaciers of the Himalayas?
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How has climate change affect the glaciers of the Himalayas?
Climate change and air pollution are speeding up the melting of the Himalayan glaciers, jeopardizing the lives and livelihoods of 750 million people who rely on the water from these glaciers and snows.
At higher elevations, glaciers accumulate snow, which eventually becomes compressed into ice. Glaciers are important as an indicator of climate change because physical changes in glaciers—whether they are growing or shrinking, advancing or receding—provide visible evidence of changes in temperature and precipitation.
Why Himalayan glaciers are shrinking?
Glaciers in the Himalayas lost billions of tons of ice between 2000 and 2016, double the amount that took place between 1975 and 2000. Rising global temperatures are to blame – the result of carbon dioxide and other greenhouse gas emissions.
How will melting of Himalayan glaciers have a far reaching impact on water resources of India?
Melting glaciers will disrupt the distribution that sustains these large populations. As the Himalayan glaciers melt over the next few decades, flooding is expected, followed by rapid retreat of the Ganges and Indus rivers, severe water shortages and massive migrations causing invisible collisions.
When will the Himalayan glaciers disappear?
Nevertheless, the data that has emerged in recent years allows scientists to make general predictions for the region. In the near term, by 2030, glaciers in the Hindu Kush Himalayan region are expected to lose between 10-30\% of their mass.
What is changing with the Himalayan glaciers?
Himalayan glaciers are melting twice as fast since 2000 as they were in the 25 years before due to human-caused climate change, researchers reported in Science Advances in 2019. Whether this particular disaster was caused by climate change isn’t known. But climate change can increase landslides and avalanches.
What are shrinking glaciers?
Glaciers and climate Glaciers act as slow-response weather instruments, growing when temperatures fall and/or more snow falls, shrinking when temperatures increase and/or less snow falls. They respond only to environmental trends that last a few decades, therefore their trends are useful for climate studies.
When Will glaciers disappear?
How fast depends on different climate scenarios, but at current speed, 80-90\% will be gone by 2050. That means we will lose almost everything, except the biggest glaciers.”
How does melting glaciers affect water scarcity?
Rising temperatures cause mountain glaciers to melt and changes the water availability. At first, as the glacier melts, more water runs downhill away from the glacier. However, as the glacier shrinks, the water supply will diminish and farms, villages and cities might lose a valuable water source.
How will melting of Himalayan glaciers Upsc?
According to IPCC projections, the melting of glaciers could indicate a likely increase in summer rainfall by 4-12\% in the near term and 4-25\% in the long term. Changing monsoon patterns, including increased severity and frequency of storms, could lead to mountain hazards that may destroy critical infrastructure.
What will happen when the glaciers in the Himalayas recede?
The Himalayan glaciers are receding On the whole, glaciers across the Hindu Kush Himalayas have lost mass since the 1970s. In the near term, by 2030, glaciers in the Hindu Kush Himalayan region are expected to lose between 10-30\% of their mass. By 2050, this figure is expected to increase to 25-35\%.
What is the climate in the Himalayas?
The climate of the Himalayas varies from tropical climate to alpine climate. As the altitude increases, the temperature of the Himalayas gradually decreases. The average summer temperature drops to 15°C and the average winter temperature is below freezing point at the middle range of the Himalaya Mountains.
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