Global warming is becoming an increasing issue in the world. Climate change is occurring, as we can see from the rise in sea level due to melting of polar glaciers and from the growing intensity of catastrophic hurricanes. A trend of increasing droughts and winter storms are even said to be linked to global warming, along with the depletion of the Earth's ozone layer; the rise in the use of greenhouse gases, carbon dioxide, and methane are all said to be contributing to ozone depletion. The last few decades have been the warmest Earth's seen since 1850. Unless we take extreme, necessary precautions to prevent further destruction, it's only going to get worse.
Sadly, a large portion of people, mostly in the United States, don't believe that global warming even exists; most of those who do believe global warming is real feel that humans aren't a contributing factor. They say that global warming has been occurring even before the age of man, claiming that it is a natural cycle that has fluctuated from the ice ages to now. They even have said we can't possibly know since we can't rely on the thermometers of previous times which could be inaccurate. National Geographic has reputed that we can use other sources for information about climate, such as trees which tell us about the environmental conditions throughout its years based on its rings. (Is Global Warming Real?)
Climate change is real and its only getting worse. Within the scientific community, there is no debate; global warming is happening and it is because of human interference. Though natural amounts of carbon dioxide have varied, today's carbon dioxide levels are higher than its ever been in the past 800,000 years, being more than 40 percent of what we would consider to be normal.
Sadly, a large portion of people, mostly in the United States, don't believe that global warming even exists; most of those who do believe global warming is real feel that humans aren't a contributing factor. They say that global warming has been occurring even before the age of man, claiming that it is a natural cycle that has fluctuated from the ice ages to now. They even have said we can't possibly know since we can't rely on the thermometers of previous times which could be inaccurate. National Geographic has reputed that we can use other sources for information about climate, such as trees which tell us about the environmental conditions throughout its years based on its rings. (Is Global Warming Real?)
Climate change is real and its only getting worse. Within the scientific community, there is no debate; global warming is happening and it is because of human interference. Though natural amounts of carbon dioxide have varied, today's carbon dioxide levels are higher than its ever been in the past 800,000 years, being more than 40 percent of what we would consider to be normal.
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Climate change is real and its only getting worse. Within the scientific community, there is no debate; global warming is happening and it is because of human interference. Though natural amounts of carbon dioxide have varied, today's carbon dioxide levels are higher than its ever been in the past 800,000 years, being more than 40 percent of what we would consider to be normal.
Works Cited
"How are humans responsible for global warming?" Environmental Defense Fund. Environmental Defense Fund. Web. 19 February 2014. http://www.edf.org/climate/human-activity-is-causing-global-warming
"Are humans responsible for global warming?" Web. 19 February 2014. http://www.debate.org/opinions/are-humans-responsible-for-global-warming
"Is Global Warming Real?" National Geographic. National Geographic. Web. 19 February 2014. http://environment.nationalgeographic.com/environment/global-warming/gw-real/
"How are humans responsible for global warming?" Environmental Defense Fund. Environmental Defense Fund. Web. 19 February 2014. http://www.edf.org/climate/human-activity-is-causing-global-warming
"Are humans responsible for global warming?" Web. 19 February 2014. http://www.debate.org/opinions/are-humans-responsible-for-global-warming
"Is Global Warming Real?" National Geographic. National Geographic. Web. 19 February 2014. http://environment.nationalgeographic.com/environment/global-warming/gw-real/