Global warming or global heating is the rise in temperature of Earth’s air and oceans.
Global warming or global heating is the rise in temperature of Earth’s air and oceans.[2] It is happening mainly because humans burn coal, oil, natural gas, and cut down forests.[3] Average temperatures today are about 1.3 °C (2.3 °F) higher than before people started burning a lot of coal around 1750.[4] By the year 2100 temperatures will very likely be 1.5 °C (2.7 °F) to 4.5 °C…
