GENERAL KNOWLEDGE

Detailed explanation-1: -Human activity has rapidly increased the emission of greenhouse gases to the atmosphere. Since the start of the Industrial Revolution, in about 1750, human activities such as burning fossil fuels, including coal and oil, have increased greenhouse gas concentrations in our atmosphere.

Detailed explanation-2: -A new study shows that the echoes of the earliest human-caused carbon emissions are still present in our atmosphere. In fact, preindustrial carbon emissions, caused by deforestation as the world’s population grew, were responsible for 9 percent of the total warming the globe has seen to date, the researchers say.

Detailed explanation-3: -According to an ongoing temperature analysis led by scientists at NASA’s Goddard Institute for Space Studies (GISS), the average global temperature on Earth has increased by at least 1.1° Celsius (1.9° Fahrenheit) since 1880.