Global Warming, The Big Problem

Today the people don't care about the global warming. This problem affect to all of us and if we not work together against this problem it win affect our lifes and animals life. Global warming is the most significant environmental problem facing us today, some impacts are alrady happening like the ice melting in the Earth's poles, some animals and plants are in risk of extinction. In spite of this, other people believe that the global warming is not happening.

Firstly, the impacts of global warming are already happening. Some of this impacts are that the sea level rise became faster, and there is an answer for this, the ice of Earth poles and mountain glaciers are melting. In the world we only have 2 percent of freshwater and we can find it in rivers, lakes, mountains and also in the Earth poles. The problem about the melting of the Earth poles ice is that the fresh water became salad because this became one with the salad water of the oceans. We can transformate the salad water to freshwater, but this process is slow and also expensive.

Furthermore some plants and animals have been affected by the impacts of the global warming. According to Henrik Selin "a large fraction of plants and animals species are likely to be at an increased risk of extinction if global surface temperatures rise another 1.5 to 2.5  celcius. If we loss a 40 percent of plants, this will affect the animals and our trade of fruits and vegetables, this will have a destructive impact on ecosystem".

On the other hand, some people believe that global warming isn't true, and that it is not happening. They believe that the Earth is more resistant to climate changes and according to Jonathan Strickland and Ed Grabianowski "plants and animals will adapt to subtle shifts in wether patterns", and they think that anything catatrophic will happen.

In conclusion, the global warming produce the ice melting in the Earth pole that rise the sea level, changes habitat of the animals and plants and if they are in risk of extinction this will affect our ecosystem. If we want to stop this catastrophic future we have to work together and reduce our greenhouse gases emissions, because this gases destroy the atmosphere and the uv ray get through the Earth and produce the global warming

Bibliography:

Effects of global warming(2007). Retrieved from Website:http://environment.nationalgeographic.com/environment/global-warming/gw-effects/

Global Warming. Available 3 of sepetember of 2014. Retrieved from
http://global.britannica.com/EBchecked/topic/235402/global-warming/274853/Environmental-consequences-of-global-warming

How global warming works. Available 4 of september of 2014. Retrieved from
http://science.howstuffworks.com/environmental/green-science/global-warming7.htm

Global warming effects

Source 1:Some impacts from increasing temperatures are already happening.

• Ice is melting worldwide, especially at the Earth’s poles. This includes mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice.
• Researcher Bill Fraser has tracked the decline of the Adélie penguins on Antarctica, where their numbers have fallen from 32,000 breeding pairs to 11,000 in 30 years.
• Sea level rise became faster over the last century.
• Some butterflies, foxes, and alpine plants have moved farther north or to higher, cooler areas.
• Precipitation (rain and snowfall) has increased across the globe, on average.
• Spruce bark beetles have boomed in Alaska thanks to 20 years of warm summers. The insects have chewed up 4 million acres of spruce trees

Author: national geographic

Website:http://environment.nationalgeographic.com/environment/global-warming/gw-effects/

Date:2007

Source 2: A large fraction of plant and animal species are likely to be at an increased risk of extinction if global average surface temperatures rise another 1.5 to 2.5 °C (2.7 to 4.5 °F) by the year 2100. Species loss estimates climb to as much as 40 percent for a warming in excess of 4.5 °C (8.1 °F)—a level that could be reached in the IPCC’s higher emissions scenarios. A 40 percent extinction rate would likely lead to major changes in the food webs within ecosystems and have a destructive impact on ecosystem function
Author:Henrik Selin
http://global.britannica.com/EBchecked/topic/235402/global-warming/274853/Environmental-consequences-of-global-warming. Date:Avaliable 3 of September of 2014

Source 3:Most scientists recognize that global warming does seem to be happening, but a few don't believe that it is anything to be worried about. These scientists say that the Earth is more resistant to climate changes on this scale than we think. Plants and animals will adapt to subtle shifts in weather patterns, and it is unlikely anything catastrophic will happen as a result of global warming. Slightly longer growing seasons, changes in precipitation levels and stronger weather, in their opinion, are not generally disastrous. They also argue that the economic damage caused by cutting down on the emission of greenhouse gases will be far more damaging to humans than any of the effects of global warming.
Author: Jonathan Strickland and Ed Grabianowski

Website: http://science.howstuffworks.com/environmental/green-science/global-warming7.htm

Date: Avaliable 4 of September