Hadley circulation 122 Hailstone National Wildlife Refuge
162-163 half-life of CO2 18 Hall, Forrest G2. 96 halocarbons 20
Harris, Charles 207
health insurance 139
heat islands 104, 122. See also urban heat island effect heat waves 238c
(Iceland) 52 HFCs (hydrofluorocarbons) 20-22 high-mountain species 150 high-residue crops 77 Hillary, Sir Edmund 173 Himalayas 174 Hogbom, Arvid 2 holding tanks 70 home energy use 116 home heating 79 honey 177
Hopwood, Nick 19-20
horseshoe crabs 160
hot spots, biodiversity 110-112
House, Kurt Zenz 223
human activity. See anthropogenic causes/
effects of greenhouse gases Huntsman, Jon 218 Hurricane Katrina 191, 238c hurricanes 190
hydrofluorocarbons (HFCs) 20-22
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