Add Yahoo as a preferred source to see more of our stories on Google. Reduce, reuse, recycle. These “three Rs” of sustainability are often associated with Earth Day, celebrated annually on April 22.

There are many causes of climate change. One example is cutting down trees. This is a problem that some people don’t know about. Carbon dioxide is released from the trunk when it breaks down or gets ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Talks aimed at a global treaty to cut ...

Black soldier flies are now commercially used to consume organic waste -- but genetic modifications proposed by bioscientists could see the insects digesting a wider variety of refuse, while also ...