(water vapor, carbon dioxide, nitrous oxide, and methane,

Scientists think that the things people do that send greenhouse gases into the air are making our planet warmer.

Sunlight enters the Earth's atmosphere, passing through the blanket of greenhouse gases

rise in temperature

It’s clear that we need to make the switch to clean, reliable sources of renewable energy like solar and wind. Unlike fossil fuels, renewables don’t add greenhouse gases to our atmosphere.