Have you heard of global warming? It' happening right now! Earth may soon, in only 10,000 years, earth will become
like Venus, because from our atmosphere, that lets sunlight go in, but not come out.
If the procces continues, Greenland and antarctica will melt, causing flooding in lowland areas,
and more hurricanes, tornadoes, and drought. Then, if the sea level rises 5 feet, cities like New York, Miami and Seattle will be under water.
Friday, November 14, 2008
Tuesday, August 12, 2008
El Nino
Thursday, July 31, 2008
Hurricanes
Hurricanes are very strong. They can reach a speed of 200 mph. When they hit land,
they destroy homes and buildings. Hurricanes are swirling, heavy rainstorms that usually hit the atlantic ocean and gulf of Mexico. When the eye of the storm comes, it gets sunny. But do not be fooled. The rain comes back. Hurricanes last for 2 days or more.
Wednesday, June 11, 2008
Supercells
Tornadoes
Tornadoes are dangeruos. Some are strong and some are weak.
The Fijita tornado scale rates tornadoes. Here is how it rates them:
F-1:40-72 mph: It can damage chimneys and brake branches off trees.
F-2:72-118 mph: It can brake roofs off houses.
F-3:118-206 mph: It can toss trains and overturn mobile homes.
F-4:206-302 mph: It can toss cars and trains into the air and drop them miles away.
F-5:302-373 mph: It can toss houses into the air.
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