H

Hadley circulation 122 Hailstone National Wildlife Refuge

162-163 half-life of CO2 18 Hall, Forrest G2. 96 halocarbons 20

hardwoods 89

Harris, Charles 207

Hawaii 119

health insurance 139

heat islands 104, 122. See also urban heat island effect heat waves 238c

Hellisheidi Geothermal Power Plant

(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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