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
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
21,946,563 questions answered
Popular Conversations
Match the parts of the following function with their correct ...
Weegy: I'm sorry. What is your question? User: Which of the following equations could be used to solve for the ...
8/30/2015 8:34:24 PM| 4 Answers
Why is Paine's use of aphorisms important in The Crisis No. ...
Weegy: C User: Read the quotation from The Crisis, No. 1, and then answer the question. “…the harder the conflict, ...
8/30/2015 4:35:59 PM| 2 Answers
Select the adverb clause from the sentence below. As population ...
Weegy: Yes, adverbs can be used to modify other adverbs. User: Select the adverb clause from the sentence below. ...
8/30/2015 6:51:38 PM| 2 Answers
Select the adverb clause from the sentence below. Unless there is ...
Weegy: Adverbs do not modify NOUN. User: Select the adverb clause from the sentence below. Wherever there have ...
8/30/2015 7:01:02 PM| 2 Answers
By creating international and national commissions to oversee atomic ...
Weegy: c. expand the development and research of atomic plants User: This was a U.S. policy proposed by George Kennan ...
8/30/2015 7:35:08 PM| 2 Answers
2. Given the formula K = LMN, what is the formula for M? A. ...
Weegy: A. M = K/LN User: 3. Solve this equation for A: A ÷ 2 = 4 A. 8 B. 4 C. 6 D. 2 Weegy: -6 + 3x = -9 ...
8/30/2015 8:24:13 PM| 2 Answers
Weegy Stuff
S
P
C
L
P
L
1
P
P
1
P
1
P
L
P
R
Points 1359 [Total 11712]| Ratings 7| Comments 1289| Invitations 0|Offline
S
1
L
L
Points 804 [Total 9272]| Ratings 3| Comments 764| Invitations 1|Offline
S
L
Points 798 [Total 1113]| Ratings 1| Comments 788| Invitations 0|Offline
S
L
L
P
1
Points 737 [Total 9310]| Ratings 2| Comments 717| Invitations 0|Offline
S
Points 541 [Total 767]| Ratings 1| Comments 531| Invitations 0|Offline
S
Points 258 [Total 266]| Ratings 0| Comments 258| Invitations 0|Offline
S
Points 224 [Total 224]| Ratings 3| Comments 194| Invitations 0|Offline
S
Points 214 [Total 533]| Ratings 1| Comments 204| Invitations 0|Offline
S
Points 205 [Total 282]| Ratings 0| Comments 205| Invitations 0|Offline
S
Points 156 [Total 187]| Ratings 0| Comments 156| Invitations 0|Online
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.