acid rain where does it come from? why is it a problem now and not years ago? why are some areas...
TRANSCRIPT
Acid Rain
• Where does it come from?• Why is it a problem now and not years ago?• Why are some areas more affected than
others?• Is this a problem in other countries?• What is the danger?• What can people do to stop it?
http://www.youtube.com/watch?v=HE6Y0iEuXMQ http://www.youtube.com/watch?v=MqHw1hMEkAQ
Why is it a problem now and not years ago?
• It was a problem in the past just as the video on dinosaur extinction showed (yesterday)
• http://current.com/shows/upstream/90026125_what-killed-the-dinosaurs.htm
• So land that developed over ancient seawater has some resistance to acid rain, the sea shell remains in the soil buffer the
acid rain, neutralizing it. Places like Whitney Point, New York have no problem.
• In other places like the Adirondacks Mountains of New York State, the glaciers cleaned away the existing soil 10,000 years ago and left no buffers in the soil. Acid rain that falls in that part of the state can do much more damage to the environment. It particularly affects life in the water in the Spring when the Winter snow melts and increases the Acid levels. This kills baby fish and other aquatic organisms.
Acid Rain is a problem in other countries like:
• Europe has a problem.• http://
www.youtube.com/watch?v=eGxnH5ejFfc• China also has a air pollution problem that
causes acid rain.• http://
www.youtube.com/watch?v=k2XV8GSyYcY
What is the danger from acid rain?
• http://www.youtube.com/watch?v=t5xLDKhwa9I&feature=related
• What is acid rain and what does it harm?• http://
www.youtube.com/watch?v=Nc6j7zz1_do&feature=related
What can people do to stop acid rain?
• In the last two decades the industries associated with coal burning have begun to work on the development of a process to strip the sulfur and nitrogen out of the smoke coming from power plants.
• One example is from Germany and a hugh effort get the pollutants out of the air. See next slide.