ozone layer depletion
71Isobutane — Isobutane …
721,1,1,2-Tetrafluoroethane — 1,1,1,2 Tetrafluoroethane …
73James Lovelock — Infobox Scientist name = James Ephraim Lovelock birth date = 26 July 1919 Hertfordshire, England death date = residence = England nationality = British field = Chemistry, Earth Science work institution = Independent researcher alma mater =… …
74Dichlorodifluoromethane — I …
75Kyoto Protocol — Participation in the Kyoto Protocol, as of December 2010, Green = Countries that have signed and ratified the treaty              (Annex I II countries in dark green) Grey =… …
76Patrick Michaels — Patrick J. Michaels, Ph.D., (born February 15, 1950) is a part time research professor of Environmental Sciences at the University of Virginia. He is a former university Climatologist for Virginia, a position he held from 1980 [cite news |first=… …
77Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ …
78Decline in amphibian populations — The Golden toad of Monteverde, Costa Rica, was among the first casualties of amphibian declines. Formerly abundant, it was last seen in 1989. Dramatic declines in amphibian populations, including population crashes and mass localized extinctions …
79Reid Stowe — William Reid Stowe (b. January 7, 1952) is an American artist and mariner, and the remaining participant of 1000 Days at Sea: The Mars Ocean Odyssey , a contemplated one thousand day voyage which commenced on April 21, 2007 from Pier 12, Hoboken …
80Polar ecology — is the relationship between plants and animals in a polar environment. Polar environments are in the Arctic and Antarctic regions. Arctic regions are in the northern hemisphere, and it contains land and the islands that surround it. Antarctic is… …
