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Science Overview
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The Scientific Case for Human-Induced Warming
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Atmosphere
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Oceans
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Disease
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Glaciers
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Forests
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Migrations and Ecosystem Changes
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Land-Use, Crops and Soils
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NAS Affirms IPCC
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IPPC II Paints Bleak Scenario
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IPCC's Third Assessment Report
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A Scientific Snapshot of the Planet -- April 1999
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Preview: US National Climate Assessment
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SCIENCE The Science of Climate Change
"Northern Hemisphere Temperatures During the Past Millennium: Inferences, Uncertainties, and Limitations," Geophysical Research Letters, March 15, 1999, Michael E. Mann, Raymond S. Bradley, and Malcolm K. Hughes * Scientists amazed at speed of ancient "climate snaps" (June, 2008) * Hansen: Oil, Coal execs are committing "crimes againt humanity" (June, 2008) * Antarctic iceberg suffocates seals (May, 2008) * Ocean warming is expanding marine "dead zones" (May, 2008) * Warming to spawn fewer -- but more intense -- hurricanes (May, 2008) * Scientists at NASA and other research labs tie more tornadoes to warming (May, 2008) * Tropical insects at risk of warming-driven extinction (May, 2008) * Humans have upset earth's 600,000-year carbon balance (April, 2008) * Warming seen decreasing oxygen levels in oceans (May, 2008) * Models project a 10-year pause in warming (May, 2008) * Pine beetles turn western forests into CO2 source (April, 2008) * Migrating jet stream will lead to more weather extremes (April, 2008) * Ocean carbon saturation could have a 1,500-year impact (April, 2008) * Scientists: World must go zero-carbon -- soon (March, 2008) * Warmer autumns generate more CO2 (Jan. 2008) * Scientists declare 350 ppm a "safe level" of CO2 (Dec. 2007) * NOAA: 2007 was Fifth Warmest on Record (Dec. 2007) * Chief Scientists: "Dangerous warming" is inevitable (Dec. 2007) * More than 200 scientists issue urgent SOS call at Bali (Dec. 2007) * IPCC4: Earth faces rapid, irreversible changes (Nov. 2007) -- IPCC4 cites "Five Reasons for Concern" -- IPCC4: Summary for Policy Makers (wiithout charts and graphics) * UN Declares Earth is in Code Red (Oct. 2007) * Flannery: Danger point arrived faster than expected (Oct. 2007) * Warming is making for a wetter world (Oct. 2007) * IPCC: "Too late" to avoid dangerous climate impacts (Sept. 2007) * Ancient runaway warming was triggered by methane release (Sept. 2007) * Scientists predict new warming spike in two years (Aug. 2007) * Low-level ozone buildup accelerates warming (July, 2007) * Desertification poses major threat to political stability -- UN (June, 2007) * We are at the brink of a "dangerous level of interference" --- Hansen (June, 2007) * Warming drives surge of dengue fever in Southeast Asia (June, 2007) * Caterpillar infestation decimates trees in northeastern US (June, 2007) * Warming progressing three times faster than anticipated (June, 2007) * Climate is flirting with a "tipping point" -- NASA (May, 2007) * Three species go extinct every hour (May, 2007) * Scientists shocked by carbon levels in the Southern Ocean (May, 2007) * Scientists rule out "Day After Tomorrow" scenario (May, 2007)
* EC concerned that biofuels will threaten rainforests (April, 2007) * Hansen: "Time's up!" (April, 2007) * IPCC II details coming impacts in the US (April, 2007) * While IPCC II issues most dire warning yet . . .
* Scientists charge governments with softening report (April, 2007)
* IPCC II to stress climate impact inequities (April, 2007) * Earth's climate sentivity consistent for 420 million years (March, 2007) * Scientific American: IPCC understates coming changes (March, 2007) * IPCC II to issue grim forecast: AP (March, 2007) * Science panel calls for immediate action to avert catastrophe (Feb. 2007) * Scientists: ice cap meltdown seems inevitable (Feb. 2007) * Ocean acidification found deeper than 4,000 meters (Feb. 2007) * Spain is convergence point for many major climate impacts (Feb. 2007) * New IPCC report paints very bleak future (Jan. 2007)
* 2006 Was Hottest Year on Record in US (Jan. 2007) * Arctic Sea Ice seen vanishing in 35 years (Dec. 2006) * Change in seasons highly visible in Alpine regions (Dec. 2006) * Carbon emissions rise sharply since 2000 (Nov. 2006) * Lovelock: "We're toast" (Nov. 2006) * Warming is accelerating the extinction of species (Nov. 2006) * Weakening gulf stream stalled for 10 days in 2004 (Oct. 2006) · NCAR projects more weather extremes (Oct. 2006) · Drought seen overtaking half the planet by 2100 (Oct. 2006)
· Solar variations have not influenced climate for at least 400 years (Sept. 2006) · CO2 rise unprecedented in 800,000 years (Sept. 2006)
· Researchers see disastrous impacts from 3* rise (Aug. 2006) · Warming is making most of the US wetter (June, 2006) · NRC confirms warming, "hockey stick" findings (June, 2006) · Permafrost CO2 deposits are double earlier estimates (June, 2006) · Glacial melt contributes to earthquake activity (June, 2006) · Seasonal shift triggers evolutionary changes in small animals (June, 2006) · Are we re-entering a prehistoric period of "permanent" el nino? · Feedbacks will fuel a much hotter world (May, 2006) · Scientists see Arctic meltdown passing "tipping point" (May, 2006) · IPCC: Humans are "dominant" cause of warming (April, 2006) · King sees 3* C rise nearly inevitable (April, 2006) · Jim Hansen's very urgent warning (Dec. 2005) · IPCC raises estimates of future warming (Feb. 2006) · Earth is on a "fast track" to climate shift (Feb. 2006) · Current warming exceeds any climate changes in past 1200 years (Feb. 2006) · Scientists dismayed by speed of Greenland glacier disintegration (Feb. 2006) · Computer models seen underestimating impacts on weather (Sept. 2005) ----------------------------------------------------------- · Scientists on the strength of Katrina (Sept. 2005) -----------------------------------------------------------
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