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Alaska, America’s last frontier, is a land of breathtaking diversity – majestic mountains, ice fields, arctic tundra, mighty rivers and some of the world’s most amazing wildlife. But Alaska is changing at an alarming rate. A team of leading scientists and wildlife filmmakers explore this remote and rugged region to document the impact of global warming on its landscape and wildlife. Over the last 40 years, Alaska has warmed by five degrees – that’s five times the gl… More >>
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You’ve heard the newsthe world is getting warmer. Even the very largest of ecosystems, our oceans, are feeling the heat. The oceans cover more than 70 percent of the globe. They are home to more than 80 percent of life on Earth from seaweed to sharks. They store heat. They regulate our weather. They provide much of our food. Many of our cities hug their shores. Stellar science writer Laurie Goldman describes how Earth is responding to climate change and what it mean… More >>
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Evaluates the risks to human health and the environment posed by two partially halogenated chlorofluorocarbons: dichlorofluoromethane (HCFC 21) and chlorodifluoromethane (HCFC 22). These two methane derivatives were selected for evaluation because of their potential use as substitutes for those fully halogenated chlorofluorocarbons that are being phased out as a result of the 1987 Montreal Protocol on Substances that Deplete the Ozone Layer. The evaluation is intend… More >>
» Read more: Partially Halogenated Chlorofluorocarbons : Environmental Health Criteria Series No 126