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.
But climate change may also influence how much land people choose to farm and the number of crops they plant each growing season. A new study takes all of these variables into account, and suggests researchers may be underestimating the total effect of climate change on the world's food supply. Satellite mapping helps researchers see changes in crop area and double cropping.