What is Global Warming?

Global warming is the increase in the average temperature of the Earth's near-surface air and oceans. For example, glaciers are melting, sea levels are rising, cloud forests are drying, and wildlife is scrambling to keep pace. Humans have caused most of the past century's warming by releasing heat-trapping gases as we power our modern lives.

There is a lot of evidence of global warming. One of them is that the methane is increasing. Another evidence of global warming is that carbon dioxide is also increasing in the atmosphere. The last evidence is melting Arctic Sea Ice. The Antarctic has seen an increase in average temperatures of almost 5 degrees Fahrenheit in the last 50 years.