Printer Friendly
The Free Library
23,375,127 articles and books


AN INCREASINGLY DIM VIEW OF GLOBAL WARMING.

Byline: David Kronke TV Critic

In case you haven't yet reached your limit on alarmist information, tonight's "Nova" report, "Dimming the Sun," should help you surpass it quite handily.

We've all heard about global warming, which suggests that greenhouse gases have made the planet about a degree warmer than it was a century ago. Now comes global dimming, a phenomenon that ostensibly cools the Earth, but in fact has masked the rate at which global warming has actually been occurring.

Global dimming is the result of pollutants in the air deflecting the sun's rays away from the Earth. One scientist, Gerald Stanhill, wrote about it years ago, but the notion was considered so outlandish that his research was dismissed. In recent years, disparate other studies have confirmed it, and, in a bizarre twist, the terrorist attacks of Sept. 11, 2001, helped push research along.

David Travis of the University of Wisconsin charted America's climate in the days after 9/11, when all planes were grounded.

With jets' condensation trails eliminated from the country's skies, the temperature range days were warmer, nights were cooler was the largest swing in the past 30 years, he discovered.

So while the greenhouse effect has been warming the planet, global dimming has cooled it a bit, which means that global warming is occurring faster than anyone realized. And while particle pollutants have been reduced from our skies, amounts of greenhouse gases escaping into the air proceed apace. Which means the world could be 5 degrees hotter by midcentury or, by one scientist's particularly dire reckoning, by 2100, the temperature could be as much as 18 degrees warmer. And you do not want to know what that would mean.

"Dimming the Sun" explicates a lot of particularly confusing science succinctly and intelligently, and its message is undeniably sobering. But all this creates a bizarre conundrum: Pollution which causes health problems but does block the sun's rays is somehow good?

David Kronke, (818) 713-3638

david.kronke(at)dailynews.com

DIMMING THE SUN - Three stars

What: "Nova" report with new information suggesting global warming may be even more dire than previously thought.

Where: KCET.

When: 8 tonight.

In a nutshell: Concise, informative and scary as hell.

CAPTION(S):

photos

Photo:

Nova's ``Dimming the Sun,'' at 8 tonight on KCET, examines a lesser-known phenomenon that ostensibly cools the Earth and has masked the rate at which global warming occurs.
COPYRIGHT 2006 Daily News
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

 Reader Opinion

Title:

Comment:



 

Article Details
Printer friendly Cite/link Email Feedback
Publication:Daily News (Los Angeles, CA)
Date:Apr 18, 2006
Words:400
Previous Article:UCLA'S AFFLALO BACKS OFF ON COMMITTING TO DRAFT GUARD, ALONG WITH FARMAR, WEIGHING OPTIONS.
Next Article:COUNTY BUDGET FAT WITH TAX CASH SAFETY, HEALTH, HOMELESS BENEFIT.
Topics:



Related Articles
A star in the greenhouse; can the sun dampen the predicted global warming?
Insuring disaster.
Heating up.
State can be leader on clean car standards.
Window's still open.
Taylor's poor forecast.
Where we stand on global warming.
Weather forecast: doom: in the 1970s, both the media and climatologists sounded the alarm about catastrophic climate change. But they imagined a very...
Global warming on Mars.
The politics of delay.

Terms of use | Copyright © 2014 Farlex, Inc. | Feedback | For webmasters