December 23, 2024, 10:47:01 AM
collapse

Author Topic: Global Warming Fast Facts  (Read 4219 times)

Offline SonnenKinder

  • PJ Gabru
  • Maharaja/Maharani
  • *
  • Like
  • -Given: 1
  • -Receive: 101
  • Posts: 10105
  • Tohar: 11
  • Gender: Male
    • View Profile
  • Love Status: Single / Talaashi Wich
Global Warming Fast Facts
« on: February 22, 2010, 09:14:09 AM »
Is It Happening?


Yes. Earth is already showing many signs of worldwide climate change.

• Average temperatures have climbed 1.4 degrees Fahrenheit (0.8 degree Celsius) around the world since 1880, much of this in recent decades, according to NASA's Goddard Institute for Space Studies.

• 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, according to the multinational Arctic Climate Impact Assessment report compiled between 2000 and 2004.

• 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.


Are Humans Causing It?

The report, based on the work of some 2,500 scientists in more than 130 countries, concluded that humans have caused all or most of the current planetary warming. Human-caused global warming is often called anthropogenic climate change.

• Industrialization, deforestation, and pollution have greatly increased atmospheric concentrations of water vapor, carbon dioxide, methane, and nitrous oxide, all greenhouse gases that help trap heat near Earth's surface.

• Humans are pouring carbon dioxide into the atmosphere much faster than plants and oceans can absorb it.

• These gases persist in the atmosphere for years, meaning that even if such emissions were eliminated today, it would not immediately stop global warming.

• Some experts point out that natural cycles in Earth's orbit can alter the planet's exposure to sunlight, which may explain the current trend. Earth has indeed experienced warming and cooling cycles roughly every hundred thousand years due to these orbital shifts, but such changes have occurred over the span of several centuries. Today's changes have taken place over the past hundred years or less.

• Other recent research has suggested that the effects of variations in the sun's output are "negligible" as a factor in warming, but other, more complicated solar mechanisms could possibly play a role.


What's Going to Happen?

A follow-up report by the IPCC released in April 2007 warned that global warming could lead to large-scale food and water shortages and have catastrophic effects on wildlife.

• Sea level could rise between 7 and 23 inches (18 to 59 centimeters) by century's end, the IPCC's February 2007 report projects. Rises of just 4 inches (10 centimeters) could flood many South Seas islands and swamp large parts of Southeast Asia.

• Some hundred million people live within 3 feet (1 meter) of mean sea level, and much of the world's population is concentrated in vulnerable coastal cities. In the U.S., Louisiana and Florida are especially at risk.

• Glaciers around the world could melt, causing sea levels to rise while creating water shortages in regions dependent on runoff for fresh water.

• Strong hurricanes, droughts, heat waves, wildfires, and other natural disasters may become commonplace in many parts of the world. The growth of deserts may also cause food shortages in many places.

• More than a million species face extinction from disappearing habitat, changing ecosystems, and acidifying oceans.

• The ocean's circulation system, known as the ocean conveyor belt, could be permanently altered, causing a mini-ice age in Western Europe and other rapid changes.

• At some point in the future, warming could become uncontrollable by creating a so-called positive feedback effect. Rising temperatures could release additional greenhouse gases by unlocking methane in permafrost and undersea deposits, freeing carbon trapped in sea ice, and causing increased evaporation of water.



Database Error

Please try again. If you come back to this error screen, report the error to an administrator.

* Who's Online

  • Dot Guests: 1828
  • Dot Hidden: 0
  • Dot Users: 0

There aren't any users online.

* Recent Posts

fix site pleae orrrr by ☬🅰🅳🅼🅸🅽☬
[November 01, 2024, 12:04:55 AM]


your MOOD now by Gujjar NO1
[October 09, 2024, 12:31:28 PM]


Best DP of the Week by Gujjar NO1
[October 08, 2024, 05:24:20 AM]


PJ te kinnu dekhan nu jii karda tuhada ??? by mundaxrisky
[September 15, 2024, 05:45:10 PM]


~~say 1 truth abt the person above ya~~ by mundaxrisky
[September 15, 2024, 05:41:15 PM]


This Site Need Fix/Update by mundaxrisky
[August 20, 2024, 04:41:58 PM]


Request Video Of The Day by mundaxrisky
[July 09, 2024, 04:24:48 PM]


Majh on sale by Gujjar NO1
[April 07, 2024, 03:08:25 PM]


Hello Old Friends/Friendaynaz by Gujjar NO1
[March 14, 2024, 03:42:51 AM]


Test, just a test by Gujjar NO1
[March 11, 2024, 12:32:30 PM]


Good morning (first word ki keha) by Gujjar NO1
[February 27, 2024, 01:10:20 AM]


Throw something at the user above u by Gujjar NO1
[February 26, 2024, 01:13:56 PM]


Just two line shayari ... by Gujjar NO1
[February 15, 2024, 10:46:34 AM]


which pj member do u miss ryt now? by ❀¢ιм Gяєωʌℓ ❀
[August 30, 2023, 03:26:27 AM]


Hello Old Friends/Friendayna by ☬🅰🅳🅼🅸🅽☬
[July 07, 2023, 08:01:42 AM]


ਚਿੱਟਾ ਤੇ ਕਾਲ਼ਾ ਆਊਡੀਓਬੂਕ by ਰੂਪ ਢਿੱਲੋਂ
[March 30, 2023, 07:50:56 PM]


What is the first thing you do, when you wake up in the morning? by Cutter
[January 12, 2023, 08:23:23 AM]


Chita Te Kala Novel Latest Review by ਰੂਪ ਢਿੱਲੋਂ
[September 14, 2022, 07:03:31 PM]


Book Review by ਰੂਪ ਢਿੱਲੋਂ
[May 19, 2022, 05:25:18 PM]


Books, Novels & Stories by ਰੂਪ ਢਿੱਲੋਂ
[May 19, 2022, 05:20:16 PM]


New Book Release: Chita Te Kala Novel by ਰੂਪ ਢਿੱਲੋਂ
[May 19, 2022, 05:06:16 PM]


What Is the Best Compliment You've Ever Received? by mundaxrisky
[October 15, 2018, 07:24:41 PM]


Last textmessage that u received by mundaxrisky
[October 15, 2018, 07:12:26 PM]


name one thing you can't live without ? by mundaxrisky
[October 15, 2018, 07:09:02 PM]


ONE thing you wish you could do RIGHT NOW... by mundaxrisky
[October 15, 2018, 07:03:57 PM]