The definition of a chortle is a chuckle or breathy, gleeful laugh. The breathy laugh you make when someone is tickling you is an example of a chortle. To chortle is to laugh in a breathy and joyful way. When someone is tickling you and you make a snorting chuckle sound, this is an example of a time when you chortle.
1 This page: http://www.globalissues.org/article/172/climate-change-affects-biodiversity. 2  To print all information e.g. expanded side notes, shows alternative links, use the print version: 3  http://www.globalissues.org/print/article/172.
Global climate change will affect people and the environment in many ways. Some of these impacts, like stronger hurricanes and severe heat waves, could be life threatening. Others, like spreading weeds, will be less serious. And some effects, like longer growing seasons for crops, might even be good! However, as the Earth keeps getting warmer, the negative effects are expected to outweigh the positive ones.