What is global warming in simple words?
Global warming is the unusually rapid increase in Earth’s average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels.
Why is global warming?
A: Global warming occurs when carbon dioxide (CO2) and other air pollutants and greenhouse gases collect in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth’s surface.
How does global warming affect climate change?
There are three major ways in which global warming will make changes to regional climate: melting or forming ice, changing the hydrological cycle (of evaporation and precipitation) and changing currents in the oceans and air flows in the atmosphere.
How does climate change occur?
Human activity is the main cause of climate change. People burn fossil fuels and convert land from forests to agriculture. Burning fossil fuels produces carbon dioxide, a greenhouse gas. It is called a greenhouse gas because it produces a “greenhouse effect”.
Why global warming is a serious issue?
It also refers to sea level rise caused by the expansion of warmer seas and melting ice sheets and glaciers. Global warming causes climate change, which poses a serious threat to life on earth in the forms of widespread flooding and extreme weather. Scientists continue to study global warming and its impact on Earth.
Is global warming a big issue?
In the U.S., where 44% say global warming is a very serious problem, more than six-in-ten Democrats (63%) express concern over this issue, compared with fewer than one-in-five (17%) Republicans. Among independents, 43% say this is a very serious problem.
Are we doing enough to stop climate change?
We’ve got to do a better job of stopping global warming, a new report says. The report, released Wednesday by the United Nations and several other research groups, says the world isn’t doing nearly enough to rein in fossil fuel production to the level that’s needed to halt “catastrophic” levels of global warming.