Question and answer
5 recommendations on how to address environmental problem (air pollution)
Smog hanging over cities is the most familiar and obvious form of air pollution. But there are different kinds of pollution—some visible, some invisible—that contribute to global warming. [ Generally any substance that people introduce into the atmosphere that has damaging effects on living things and the environment is considered air pollution. Carbon dioxide, a greenhouse gas, is the main
pollutant that is warming Earth. Though living things emit carbon dioxide when they breathe, carbon dioxide is widely considered to be a pollutant when associated with cars, planes, power plants, and other human activities that involve the burning of fossil fuels such as gasoline and natural gas. In the past 150 years, such activities have pumped enough carbon dioxide into the atmosphere to raise its levels higher than they have been for hundreds of thousands of years. Other greenhouse gases include methane—which comes from such sources as swamps and gas emitted by livestock—and chlorofluorocarbons (CFCs), which were used in refrigerants and aerosol propellants until they were banned because of their deteriorating effect on Earth's ozone layer. Another pollutant associated with climate change is sulfur dioxide, a component of smog. Sulfur dioxide and closely related chemicals are known primarily as a cause of acid rain. But they also reflect light when released in the atmosphere, which keeps sunlight out and causes Earth to cool. Volcanic eruptions can spew massive amounts of sulfur dioxide into the atmosphere, sometimes causing cooling that lasts for years. In fact, volcanoes used to be the main source of atmospheric sulfur dioxide; today people are. Industrialized countries have worked to reduce levels of sulfur dioxide, smog, and smoke in order to improve people's health. But a result, not predicted until recently, is that the lower sulfur dioxide levels may actually make global warming worse. Just as sulfur dioxide from volcanoes can cool the planet by blocking sunlight, cutting the amount of the compound in the atmosphere lets more sunlight through, warming the Earth. ]
Expert answered|megumiii|Points 0|
Question
Asked 5/12/2012 7:20:45 AM
0 Answers/Comments
Ask a question
Not a good answer? Get an answer now. (Free)
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
16,948,190 questions answered
Popular Conversations
beliefs of buddhism
Weegy: Read more: Buddhism: Basic Beliefs and Practices | Infoplease.com ]
7/28/2014 4:39:59 AM| 5 Answers
Find the product. (-7p)^3
Weegy: -21p User: Find the product. (n^3)^2 · (n^5)^4 Weegy: your question? User: Find the ...
7/28/2014 7:09:27 AM| 3 Answers
People who have the genetic disorder called hemophilia suffer from ...
Weegy: People who have the genetic disorder called hemophilia suffer from abnormally low levels of oxygen in the blood ...
7/27/2014 6:19:14 AM| 2 Answers
calculate the sum of 1/4 and 1/5
Weegy: 1/4 + 1/5 = 9/20 User: calculate the sum of 1/9 and 1/4 Weegy: 1/9 + 1/8 = 17/72
7/27/2014 3:52:21 PM| 2 Answers
A peer group is a _______ group composed of equal age individuals ...
Weegy: A peer group is a primary group composed of equal age individuals with similar characteristics. User: The ...
7/27/2014 5:21:49 PM| 2 Answers
Solve for x. 8 – 3x = 20 User: Juan buys 4 shirts on sale for $15 ...
Weegy: 4 tshirts 4 x $15.00 = $60.00 $78.00 - $60.00 = $18.00 6 pairs of socks is $18.00 $18.00 / 6 = $3.00 each ...
7/28/2014 7:55:02 AM| 2 Answers
Weegy Stuff
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
Points 2248 [Total 21248]| Ratings 1| Comments 2238| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
Points 2145 [Total 17274]| Ratings 0| Comments 2145| Invitations 0|Offline
S
L
P
C
L
P
C
P
C
L
P
C
P
C
Points 1901 [Total 14456]| Ratings 1| Comments 1891| Invitations 0|Offline
S
L
1
Points 1560 [Total 3743]| Ratings 2| Comments 1540| Invitations 0|Online
S
L
1
1
1
1
L
1
Points 1284 [Total 7461]| Ratings 2| Comments 1264| Invitations 0|Online
S
1
L
Points 1116 [Total 3252]| Ratings 7| Comments 1046| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 925 [Total 10533]| Ratings 0| Comments 925| Invitations 0|Offline
S
1
L
Points 830 [Total 4506]| Ratings 2| Comments 810| Invitations 0|Offline
S
P
C
L
P
L
1
Points 774 [Total 5828]| Ratings 4| Comments 734| Invitations 0|Offline
S
Points 277 [Total 425]| Ratings 2| Comments 257| Invitations 0|Offline
Home | Contact | Archive | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.