Sunday, December 25, 2005

Rising global temperatures are expected to raise sea level, and change precipitation and other local climate conditions. Changing regional climate could alter forests, crop yields, and water supplies. It could also affect human health, animals, and many types of ecosystems. Deserts may expand into existing rangelands, and features of some of our National Parks may be permanently altered.
Global mean surface temperatures have increased 0.5-1.0°F since the late 19th century. The 20th century's 10 warmest years all occurred in the last 15 years of the century. Of these, 1998 was the warmest year on record. The snow cover in the Northern Hemisphere and floating ice in the Arctic Ocean have decreased. Globally, sea level has risen 4-8 inches over the past century. Worldwide precipitation over land has increased by about one percent. The frequency of extreme rainfall events has increased throughout much of the United States.
Increasing concentrations of greenhouse gases are likely to accelerate the rate of climate change. Scientists expect that the average global surface temperature could rise 1-4.5°F (0.6-2.5°C) in the next fifty years, and 2.2-10°F (1.4-5.8°C) in the next century, with significant regional variation. Evaporation will increase as the climate warms, which will increase average global precipitation. Soil moisture is likely to decline in many regions, and intense rainstorms are likely to become more frequent. Sea level is likely to rise two feet along most of the U.S. coast.
I think that we should change our ways to improve these problem. These ploblems may not influence us too much,but ous children or grandchildren could suffer these problems. So we have to reverse our environment right now.

assume to http://yosemite.epa.gov/oar/globalwarming.nsf/content/index.html

3 Comments:

Blogger Happy said...

Hi, Guy,

It's copied from the website. Please write down your opinion about the following phenomeon.

According to the passage "Global mean surface temperatures increased 0.5-1.0°F since the late 19th century..." http://yosemite.epa.gov/oar/globalwarming.nsf/content/index.html, what do you any thought on the enviornment where we live in and how to protect it? Do you have any your idea?
Delin

6:19 AM  
Blogger 世俊 said...

The schoolmate writes is very exhaustive, all wrote the result, lets the person which looked think very seriously, Can let the person which reads take this title.

4:42 PM  
Blogger 軍廷 said...

It's copied from the website.
Maybe u can add your own opinion.
This artical would be better.

4:44 PM  

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