Climate change describes a change in the average conditions — such as temperature and rainfall — in a region over a long period of time. NASA scientists have observed Earth's surface is warming, and many of the warmest years on record have happened in the past 20 years. In Week 1 my students share their ideas on Flipgrid that which things affected our environment .

CAUSES OF CLIMATE CHANGE -

Causes of climate change

Global warming is caused by the greenhouse effect, a natural process by which the atmosphere retains some of the Sun's heat, allowing the Earth to maintain the necessary conditions to host life. Without the greenhouse effect, the average temperature of the planet would be -180C.