Scientist Says Greenhouse Warming Is Here

By Monastersky, Richard | Science News, July 2, 1988 | Go to article overview

Scientist Says Greenhouse Warming Is Here


Monastersky, Richard, Science News


Scientist Says Greenhouse Warming Is Here

As the interior of the United States was sweltering through what may be the worst drought in a half-century, a NASA scientist told Congress last week that 1988 is rapidly becoming the warmest year on record and that the earth has warmed enough over the last decade for rising global temperatures to be attributed to atmospheric pollutants known as "greenhouse" gases. While scientists say the greenhouse effect may not have specifically caused this year's drought, they testified that droughts in the North American interior are probably becoming more frequent because of global greenhouse warming.

James Hansen, a climate expert at the NASA Goddard Institute of Space Studies in New York City, told the Senate energy committee that the average global temperature so far this year has risen 0.4[deg.]C relative to mean temperatures for the period 1950 to 1980, and said he is 99 percent certain the accumulation of greenhouse gases is responsible for the warming trend. In the past, scientists have hesitated to be so definitive.

"There's no time at which you're 100.0 percent certain," Hansen told SCIENCE NEWS. "But if we look at the record, I think it's beginning to get pretty darn clear that something is going on. And in my opinion, it's time to say that."

For the years 1950 to 1980, the standard deviation is global temperatures is 0.13[deg.]C. The temperatures for the first five months of 1988 have exceeded three times the standard deviation of that 30-year period, which means there is less than a 1 percent chance that natural climate fluctuations are causing the temperature rise, Hansen says. According to records going back about a century, global temperatures have increased by 0.6 to 0.7[deg.]C, and the five warmest years in the last century have occurred in the 1980s (SN: 4/30/88, p.282).

Such patterns agree with computer models that simulate how the climate should react to increasing concentrations of greenhouse gases -- principally carbon dioxide, methane, nitrous oxide and the ozone-destroying chlorofluorocarbons. …

The rest of this article is only available to active members of Questia

Sign up now for a free, 1-day trial and receive full access to:

  • Questia's entire collection
  • Automatic bibliography creation
  • More helpful research tools like notes, citations, and highlights
  • Ad-free environment

Already a member? Log in now.

Notes for this article

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items

Items saved from this article

This article has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this article

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this article

Cited article

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited article

Scientist Says Greenhouse Warming Is Here
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this article

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Full screen

matching results for page

Cited passage

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited passage

Welcome to the new Questia Reader

The Questia Reader has been updated to provide you with an even better online reading experience.  It is now 100% Responsive, which means you can read our books and articles on any sized device you wish.  All of your favorite tools like notes, highlights, and citations are still here, but the way you select text has been updated to be easier to use, especially on touchscreen devices.  Here's how:

1. Click or tap the first word you want to select.
2. Click or tap the last word you want to select.

OK, got it!

Thanks for trying Questia!

Please continue trying out our research tools, but please note, full functionality is available only to our active members.

Your work will be lost once you leave this Web page.

For full access in an ad-free environment, sign up now for a FREE, 1-day trial.

Already a member? Log in now.