Global Warming & Climate Change Page
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Global warming refers to an unequivocal and continuing rise in the average temperature of Earth's climate system.[2] Since 1971, 90% of the warming has occurred in the oceans.[3]
Despite the oceans' dominant role in energy storage, the term "global
warming" is also used to refer to increases in average temperature of
the air and sea at Earth's surface.[4][5]
Since the early 20th century, the global air and sea surface
temperature has increased about 0.8 °C (1.4 °F), with about two-thirds
of the increase occurring since 1980.[6] Each of the last three decades has been successively warmer at the Earth’s surface than any preceding decade since 1850.[7]
Scientific understanding of the cause of global warming has been increasing. In its fourth assessment (AR4 2007) of the relevant scientific literature, the International Panel on Climate Change
(IPCC) reported that scientists were more than 90% certain that most of
global warming was being caused by increasing concentrations of greenhouse gases produced by human activities.[8][9][10] In 2010 that finding was recognized by the national science academies of all major industrialized nations.[11][A] Affirming these findings in 2013, the IPCC stated that the largest driver of global warming is carbon dioxide (CO2) emissions from fossil fuel combustion, cement production, and land use changes such as deforestation.[12] Its 2013 report states
Human influence has been detected in warming of the atmosphere and
the ocean, in changes in the global water cycle, in reductions in snow
and ice, in global mean sea level rise, and in changes in some climate
extremes. This evidence for human influence has grown since AR4. It is
extremely likely (95-100%) that human influence has been the dominant
cause of the observed warming since the mid-20th century.
—IPCC AR5 WG1 Summary for Policymakers[13]
Climate model projections were summarized in the 2007 Fourth Assessment Report (AR4) by the Intergovernmental Panel on Climate Change (IPCC). They indicated that during the 21st century the global surface temperature is likely to rise a further 1.1 to 2.9 °C (2.0 to 5.2 °F) for their lowest emissions scenario and 2.4 to 6.4 °C (4.3 to 11.5 °F) for their highest.[14] The ranges of these estimates arise from the use of models with differing sensitivity to greenhouse gas concentrations.[15][16] For the complete article go to: http://en.wikipedia.org/wiki/Global_warming |
Materials on the Subject of Glorbal Warming (Articles, PowerPoint, Videos, & Links) |
Videos |
Unstopable Solar Cycles (Use Player That can open a .VOB file) | carbon dioxide and greenhouse effect | global warming - what it is | global warming | greenhouse effect & glacial melt | Discovery Channel - Global Warming, What You Need to know About Global Warming |
BBC - The Truth About Climate Change | Global Warming 101 | Global warming - fact or fiction? | Climate Skeptic Richard Muller Admits Global Warming is Real and Humans are the Cause
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PowerPoints (many illustrate the "extremes" predicted by climatologists) |
2014 rough winter start | December snow in Middle East - Cairo | Midwest Tornado Day | Monster Waves Hit Britain | Thanksgiving Storm Moves East, Could Snarl Holiday | What if all the Ice Melts |
Winter Woes – Not What They Used to be | Global Warming | What's Up With Global Warming? | Making a Difference One Watt at a Time | Global Warming and the Coming Peaks | Climate Change (NEW) |
A Woirld Endangered (New) | | | | | |
Articles |
Arctic sea ice in longest decline seen over past | Arctic Sea Ice Melt Season Getting Longer | Arctic's Icy Coastlines Retreat as Planet Warms | Arctic's 'Layer Cake' Atmosphere Blamed for Rapid Warming | Climate change and collapse of Huge Ancient Civilization | Climate change linked to more pollen |
Glaciers in perspective | Health and Climate Change | Jet stream shift could prompt harsher winters | More Climate Problems in Artic | Ocean acid threatens food chain | Rain is too much of a good thing for region |
Rare Night Tornadoes This Week Fueled By Warm Winter | Sea Level Rise Swamping Florida | Shrinking Arctic Sea Ice Means Scorching US Summers | Skeptic finds he now agrees global warming is real | The Big Melt | The climate change threat to nuclear power |
The Coming Death of Venice | What's New in the IPCC's Report on Extreme Weather | Why Has It Been So Cold This Spring | | | |
Links |
About.Com - Global Warming Facts | About.Com - What is Global Warming | About.Com - The Causes of Global Warming | About.Com - The Effects of Global Warming | About.Com - Solutions to Global Warming etc. | Natural Resources Defense Council |
National Geographic Magazine | NASA | Scientific American | Christian Science Monitor | Union of Concerned Scientists | |