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Redwood trees are among the oldest living organisms in the world. They can live
for more than 2000 years. Some of these huge trees were alive during the Roman
Empire. The oldest known living redwood tree is around 2200 years old. The
tallest one stands 380 feet. The California redwoods have been logged into near
oblivion to keep up with the demand for lumber and today only 5% of the original
old-growth coast redwood forest remains. There are fewer than 100,000 acres
along the coast of the United States.
The global climate is projected to continue to change over this century and beyond. The magnitude of climate change beyond the next few decades depends on the amount of heat trapping gases emitted globally and how sensitive the Earth's climate is to those emissions causing this global warming. Global warming is bad for human health in countless ways. Rising temperatures climbing across the globe cause he ways. Heat waves cause dehydration and heat stroke especially in the elderly, children and the poor. The air quality from global warming causes pollution from burning fossil fuels.
Climate change and air quality are also linked to more wildfires. Extreme weather is also possible because of climate change and global warming. Hurricanes and floods have immediate fatal consequences and can cause waterborne illnesses. According to NASA the Earth's average temperature has increased about 2°F during the 20th century. 2° may sound like a small amount but it's a very unusual event in our recent history. Global climate change has already had observable effects on the environment where glaciers have shrunk and ice on rivers and lakes are breaking up earlier. Trees and flowers are flowering sooner than in years past too.
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