What is global warming and its connection with greenhouse gases?

Answer 1

Global warming is the rapid warming of the earth that has been happening in the last 250 years (since the Industrial Age began).

Greenhouse gases, including water vapor and carbon dioxide, work with the natural carbon and water cycles of the earth to keep our planet warm. The gases hold back heat that would escape back out to space. This is called the greenhouse effect and has been happening for millions of years and is perfectly natural.

When man began digging up and burning coal and other fossil fuels we released billions of tons of extra carbon dioxide that had been safely stored under the earth for millions of years. It is this extra CO2 that is causing Global Warming. That and deforestation. When we cut down the great forests of the world we destroyed so many trees that used to soak up carbon dioxide from the atmosphere and store it in their roots, trunks and branches for hundreds of years.

Answer 2

Global warming is the increase in Earth's average surface temperature due to human activities releasing greenhouse gases into the atmosphere. Greenhouse gases, like carbon dioxide and methane, trap heat in the Earth's atmosphere, leading to a rise in temperature and changes in climate patterns worldwide.