Big+Concept

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[|http://www.theworldmychildrenwillinherit.wikispaces.com]
Relax! There is enough water in the world to last us forever, but some research shows there is a possibility of water disappearing and never returning back. Maybe our chemicals will harm our water and then it won't be pure. Maybe the chemicals will turn our water into something like poison. We can not risk our water thinking it will last for ever, thats way we need to save our water and take care of it! -Ria

• The rate of warming is increasing. The 20th century's last two decades were the hottest in 400 years and possibly the warmest for several millennia, according to a number of climate studies. And the United Nations' Intergovernmental Panel on Climate Change (IPCC) reports that 11 of the past 12 years are among the dozen warmest since 1850. • The Arctic is feeling the effects the most. Average temperatures in Alaska, western Canada, and eastern Russia have risen at twice the global average. • Arctic ice is rapidly disappearing, and the region may have its first completely ice-free summer by 2040 or earlier. Polar bears and indigenous cultures are already suffering from the sea-ice loss. • Glaciers and mountain snows are rapidly melting—for example, Montana's Glacier National Park now has only 27 glaciers, versus 150 in 1910. In the Northern Hemisphere, thaws also come a week earlier in spring and freezes begin a week later. • Coral reefs, which are highly sensitive to small changes in water temperature, suffered the worst bleaching—or die-off in response to stress—ever recorded in 1998, with some areas seeing bleach rates of 70 percent. Experts expect these sorts of events to increase in frequency and intensity in the next 50 years as sea temperatures rise. • An upsurge in the amount of extreme weather events, such as wildfires, heat waves, and strong tropical storms, is also attributed in part to climate change by some experts. || ## [|What is the greenhouse effect, and is it affecting our climate?]
 * Things we know already: || Things we want to know & answers: ||  ||
 * • Average temperatures have climbed 1.4 degrees Fahrenheit (0.8 degree Celsius) around the world since 1880, much of this in recent decades.
 * 1) [|Are greenhouse gases increasing?]
 * 2) [|Is the climate warming?]
 * 3) [|Is the hydrological cycle (evaporation and precipitation) changing?]
 * 4) [|Is the atmospheric/oceanic circulation changing?]
 * 5) [|Is the climate becoming more variable or extreme?]
 * 6) [|How important are these changes in a longer-term context?]
 * 7) [|Is sea level rising?]
 * 8) [|Can the observed changes be explained by natural variability, including changes in solar output?]
 * 9) [|What about the future?] ||   ||




 * Useful Site For Global Warming: ||


 * * Wikipedia ([|www.wikipedia.com])
 * [|www.theworldmychildrenwillinherit.wikispaces.com]
 * Google ([|www.google.com])
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 * __h__[|ttp://www.edf.org/pubs/Brochures/GlobalWarming/]
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 * [|http://www.middlebury.edu/~rosenber/DR-personal-> homepage/globalwarming/globwar.html]
 * [|http://elmhcx9.elmhurst.edu/~chm/onlcourse/chm110/issues/issue197.html] ||