Global Warming

The earth's climate is constantly changing. We have recently been on a warming trend for approximately the past half-century, although that seems to have changed within the last decade. Many thing cause global warming. In this movie, every expert interviewed stressed the fact that human involvement in the fight against global warming is mandatory. When light from the sun enters our atmosphere it gets converted to heat which gets trapped by greenhouse gases such as carbon dioxide, methane, and water vapor. Global warming has begun because since the industrial revolution, humans have been putting large amounts of greenhouse gases into the atmosphere and over time these have built up. Before that time, human activity didn’t release many greenhouse gases, but population growth, deforestation, factory farming, and the widespread use of fossil fuels are creating an excess of greenhouse gases in the atmosphereand contributing to global warming.