Question

this is a group discussion round .And the first topic is -:human beings solelyresponsible for global warming ?write your opinion .please don't write if you don't know be serious it's very important

Answer 1

MY OPINION.....

Different greenhouse gases have very different heat-trapping abilities. Some of them can trap more heat than an equivalent amount of CO2. A molecule of methane doesn't hang around the atmosphere as long as a molecule of carbon dioxide will, but it is at least 84 times more potent over two decades. Nitrous oxide is 264 times more powerful than CO2.

CLIMATE CHANGE 101 WITH BILL NYEClimateChange is a real and serious issue. In this video Bill Nye, the Science Guy, explains what causes climatechange, how it affects our planet, why we need to act promptly to mitigate its effects, and… Read More

Other gases, such as chlorofluorocarbons, or CFCs—which have been banned in much of the world because they also degrade the ozone layer—have heat-trapping potential thousands of times greater than CO2. But because their emissions are much lower than CO2, none of these gases trap as much heat in the atmosphere as CO2 does.

When those gases that humans are adding to Earth's atmosphere trap heat, it’s called the "greenhouse effect." The gases let light through but then keep much of the heat that radiates from the surface from escaping back into space, like the glass walls of a greenhouse. The more greenhouse gases in the atmosphere, the more dramatic the effect, and the more warming that happens.

Climate change continues

Despite global efforts to address climate change, including the landmark 2015 Paris climate agreement, carbon dioxide emissions from fossil fuels continue to rise, hitting record levels in 2018.

Many people think of global warming and climate change as synonyms, but scientists prefer to use “climate change” when describing the complex shifts now affecting our planet’s weather and climate systems. Climate change encompasses not only rising average temperatures but also extreme weather events, shifting wildlife populations and and habitats, rising seas, and a range of other impacts.


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