Помогите с английским!)) ) What is global warming? Нужно написать своими словами на английском

What is global warming?
Global warming - the gradual increase in the average temperature of Earth's atmosphere and oceans in the XX and XXI centuries.

The position of the Intergovernmental Panel on Climate Change (IPCC), aligned with the National Academy of Sciences of the "Big Eight", lies in the fact that the average temperature on Earth has risen by 0,7 ° C since the beginning of the Industrial Revolution (the second half of XVIII century ), and that "a large proportion of observed warming over the last 50 years is attributable to human activities", particularly the emission of gases that cause the greenhouse effect of carbon dioxide (CO2) and methane (CH4).
Estimates obtained from climate models of the IPCC report in 2007 said that by early XXII century, average global surface temperature could rise by between 1.8 and 3,4 ° C [2]. In some regions, the temperature may drop slightly.
In addition to sea level rise, global temperature will also lead to changes in the amount and distribution of precipitation. This can result in more frequent natural disasters: floods, droughts, storms and other. Warming should probably increase the frequency and magnitude of these events.
Another possible effect of the increase in global temperatures is to reduce crop yields in poor countries in Africa, Asia and Latin America and increase yields in developed countries (due to the increase in carbon dioxide concentration and longer growing seasons). [3]
Climate warming may lead to a shift of species ranges to the polar zones and increase the probability of extinction of indigenous species inhabitants of the coastal areas and islands, whose existence is now under threat. [4]
Some researchers believe that global warming - is a myth, some scholars reject the possibility of human influence on this process. There are those who do not deny the fact of warming and its anthropogenic permits, but does not agree with the fact that the most dangerous impacts of climate are industrial emissions of greenhouse gases