ENVS 2270 Chapter Notes - Chapter Unit 3: Ozone Depletion, Jigsaw Puzzle, Tropopause

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Sciences is a jigsaw puzzle: as evidence builds, we get a clearer picture of what"s driving our climate, main drivers of global warming are rising co2 levels from fossil fuel burning. Reading: global warming facts: because emissions remain in atmosphere for decades/centuries, the choices we make today greatly influence the climate of our children, we have technology to increase efficiency and reduce emissions from energy and land use. Human fingerprints: over last 2 decades, earth"s surface has undergone unprecedented warming, natural patterns of climate have been altered, patterns observed by meteorologists and oceanographers, compared with patterns developed by. Since 1992, every single year has made the record for 20 warmest years. Sciences seek to answer: are humans part of the cause? models of earth"s atmosphere and ocean: can now positively identify human fingerprints associated with changes. Background: driving the climate (forcing: climate is influence by natural cycles and humans.

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