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Climate Change Is Intensifying the Water Cycle which Brings More Powerful Storms and Flooding | Answer Inside | 2YODOINDIA

Climate Change Is Intensifying the Water Cycle which Brings More Powerful Storms and Flooding | Answer Inside

Powerful storm systems trigger flash flooding across the US in late July, inundating St. Louis neighbourhoods with record rainfall and setting off mudslides in eastern Kentucky, where at least 16 people died in the flooding.

One more flood in Nevada flooded the Las Vegas strip.

The impact of climate change on extreme water related events like this is becoming increasingly evident.

The storms in the US follow extreme flooding this summer in India and Australia and last year in Western Europe.

Studies by scientists around the world show that the water cycle has intensifying and will continue to intensify as the planet warms.

As it documented an increase in both wet extremes, including more intense rainfall over most regions, and dry extremes, including drying in the Mediterranean, southwestern Australia, southwestern South America, South Africa and western North America.

It also shows that both wet and dry extremes will continue to increase with future warming.

Water cycles through the environment, moving between the atmosphere, ocean, land, and reservoirs of frozen water.

It might fall as rain or snow, seep into the ground, run into a waterway, join the ocean, freeze or evaporate back into the atmosphere.

Plants also take up water from the ground and release it through transpiration from their leaves.

In past decades, there has an overall increase in the rates of precipitation and evaporation.

A number of factors are intensifying the water cycle, but one of the most important is that warming temperatures raise the upper limit on the amount of moisture in the air.

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Which increases the potential for more rain.

The aspect of climate change is confirm across all of our lines of evidence discuss in the IPCC report.

It is expect from basic physics, project by computer models, and it already shows up in the observational data as a general increase in rainfall intensity with warming temperatures.

Understanding this and other changes in the water cycle is important for more than preparing for disasters.

Water is an essential resource for all ecosystems and human societies, and particularly agriculture.

An intensifying water cycle means that both wet and dry extremes and the general variability of the water cycle will increase, although not uniformly around the world.

Rainfall intensity is expect to increase for most land areas, but the largest increases in dryness are expect in the Mediterranean, southwestern South America and western North America.

Worldwise, daily extreme precipitation events will likely intensify by about 7% for every 1 degree Celsius that global temperatures rise.

Many other important aspects of the water cycle will also change in addition to extremes as global temperatures increase, the report shows, including reductions in mountain glaciers, decreasing duration of seasonal snow cover, earlier snowmelt and contrasting changes in monsoon rains across different regions, which will impact the water resources of billions of people.

One of the common theme across these aspects of the water cycle is that higher greenhouse gas emissions lead to bigger impacts.

The IPCC does not make policy recommendations. Instead, it provides the scientific information needed to carefully evaluate policy choices.

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The results show what the implications of different choices are likely to be.

One thing the scientific evidence in the report clearly tells world leaders is that limiting global warming to the Paris Agreement target of 1.5 degrees Celsius will require immediate, rapid and large-scale reductions in greenhouse gas emissions.

Without of any specific target, it is clear that the severity of climate change impacts are closely link to greenhouse gas emissions, Reducing emissions will reduce impacts.

Every fraction of a degree matters.

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