© 2022 Iowa Public Radio
IPR20012_Website_Header_Option2_NewsNavy.png
Play Live Radio
Next Up:
0:00
0:00
Available On Air Stations

Global Warming

Using a variety of local sources, researchers have managed to assemble a 150-year record of freeze and ice breakup dates for lakes and rivers in such far-flung locales as Wisconsin and Japan. The resulting chronicle shows a consistent trend towards later freezing and earlier thawing that corresponds with other evidence of global warming. NPR Science Correspondent Chris Joyce reports.

Copyright 2000 NPR