Skip to main content
ad info

 
CNN.com  nature
  Editions | myCNN | Video | Audio | Headline News Brief | Feedback  

 

  Search
 
 

 
NATURE
TOP STORIES

New hurdles hamper Galapagos oil spill cleanup

Insight, Prius lead the hybrid-powered fleet

Picture: Indonesia's Merapi volcano erupts

(MORE)

TOP STORIES

Up to 2,000 killed in India quake; fear of aftershocks spreads

Clinton aide denies reports of White House vandalism

New hurdles hamper Galapagos oil-spill cleanup

Two more Texas fugitives will contest extradition

(MORE)

MARKETS
4:30pm ET, 4/16
144.70
8257.60
3.71
1394.72
10.90
879.91
 


WORLD

U.S.

POLITICS

LAW

TECHNOLOGY

ENTERTAINMENT

HEALTH

TRAVEL

FOOD

ARTS & STYLE



(MORE HEADLINES)
*
  E-MAIL:
Subscribe to one of our news e-mail lists.
Enter your address:
Or:
Get a free e-mail account

 DISCUSSION:
 message boards
 chat
 feedback

  CNN WEB SITES:
CNN Websites
 AsiaNow
 En Español
 Em Português
 Svenska
 Norge
 Danmark
 Italian

 FASTER ACCESS:
 europe
 japan

 TIME INC. SITES:
 CNN NETWORKS:
Networks image
 more networks
 transcripts

 SITE INFO:
 help
 contents
 search
 ad info
 jobs

 WEB SERVICES:
CNN e-store


Report strengthens link between pollution, global warming

Researchers say the Earth's average temperature could be in store for the largest rise in 10,000 years  

October 27, 2000
Web posted at: 12:47 PM EDT (1647 GMT)

(CNN) -- Earth's average surface temperature could rise from 2.7 degrees F to almost 11 degrees F over the next hundred years, according to a draft report from the United Nations' intergovernmental panel on climate change.

The difference may not sound like much of a change. But in comparison, the Earth's average global temperature now is only about nine degrees warmer than during the last ice age.

"The changes we're looking at now are larger than anything we've seen in the last 10,000 years," said Keven Trenberth with National Center for Atmospheric Research

  INTERACTIVE
 
 VIDEO
Environment Correspondent Natalie Pawelski shows us how pollution is contributing to global warming

Play video
(QuickTime, Real or Windows Media)
 
  MESSAGE BOARD
 

Global warming is blamed on greenhouse gasses, like carbon dioxide, which form an atmospheric blanket that warms the Earth.

The intergovernmental panel issued similar reports in 1990 and 1995. Five years ago the group of more than 100 of the world's pre-eminent climate scientists projected only a temperature increase of 1.8 to 6.3 degrees F. "The balance of evidence suggests a discernible human influence on global climate," they said.

The 2000 draft report said the higher temperatures stem mainly from more sophisticated computer modeling and an anticipated drop in sulfate emissions, especially from power plants, which have been reduced for air quality reasons.

Scientists who have read the panel's latest draft said it makes a stronger link between pollution and climate change, concluding that manmade pollution has "likely ... contributed substantially to observable warming over the last 50 years."

cyclist on smoggy street
Scientists say the reports show strong evidence for a link between climate change and pollution  

Some observers wondered about the timing of the Thursday report, coming so close to the presidential election.

Additionally, the release came weeks before international leaders gather in The Hague to discuss the Kyoto Protocol, a treaty designed to reduce world greenhouse gas emissions.

No industrialized nations have signed the treaty, but more than 150 other countries have ratified it.

More than 10,000 participants are expected for the mid-November summit, including delegates, journalists and non-government organization representatives.



RELATED STORIES:
New study finds warming trend in oceans
March 23, 2000
Global warming could scorch some U.S. regions, flood others
June 12, 2000
Aggressive climate change policy urged
August 11, 1999

RELATED SITES:
NCAR
aricInternet - world class research & education in atmospheric & sustainability issues


Note: Pages will open in a new browser window
External sites are not endorsed by CNN Interactive.
 Search   


Back to the top   © 2001 Cable News Network. All Rights Reserved.
Terms under which this service is provided to you.
Read our privacy guidelines.