Scientists are more than 95% certain that nearly all of global warming is caused by increasing concentrations of greenhouse gases and other human emissions. If we don't change our our attitudes towards climate change, we risk facing food shortages and the extinction of many wildlife species.
Arbor Day is celebrated on the last Friday of April annually. This is a special day to celebrate trees like a birthday. Its purpose is to encourage people to learn about the importance of trees and how to protect them for us and future generations.
