Global air temperatures near Earth's surface rose almost one and one-half degrees Fahrenheit in the last century. Earth has warmed twice as fast in the last 50 years as in the 50 years before that. One and one-half degrees may not seem like much. But when we are talking about the average over the whole Earth, lots of things start to change.
Skype Session
Skype Session
Students from St. Marks asked, "How do we know the climate is changing?" and the Lincoln students answered.
Climate Change
Climate Change
How does climate change? And what happens to environments and ecosystems when it does? In this episode of Crash Course Kids, Sabrina shows us the effects that climate change can have and how one small change in an ecosystem can throw everything off.