Global Warming Part 2 – What does Global Warming Affect?

 

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In my first blog i discussed what Global Warming actually is and what it is caused by.
For my second blog, i will be discussing what does Global Warming affect?

Firstly, the name is a dead giveaway. Global Warming warms up the earths atmosphere, but what affects will this have?
After all, if its only a few degrees, it cant do that much harm right? Wrong.

Ill start with the implications of the ocean becoming warmer. Although seemingly harmless, having a warmer ocean will have devastating affects on the earth.
As the earths ocean becomes warmer and warmer, the polar ice caps will slowly deteriorate (which we are witnessing in our age). [1] not only will  this mean hundreds of thousands of animals in Antarctica will die , many species will not be able to repopulate because there is no suitable land to breed on. this has been apparent for some time now, 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.[4]
As it melts and ocean levels rise, coastlines and low-lying areas are threatened. If the Earth’s climate warms by
2 to 3 more degrees by 2100, global sea level will rise 3 feet, displacing almost 56 million people around the world. [1] As the temperature of oceans rise, so will the probability of increasingly frequent and stronger hurricanes. We saw in this in 2004 and 2005. [2] The implications of such destructive natural disasters and raising water levels will cause hardship and distress for humanity around the whole world.

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The environmental implications of Global Warming as just as severe. many plants will not be able to fruit or even grow in the raised temperatures, this means less food for people and with such a high concentration of population in some area’s this raises serious concern’s. as discussed before when the ocean’s temperature rises this will have implications for many breed’s of fish, and possibly death to a high percentile. The EPA reports that an additional increase of 3.6 degrees F in the global temperature could decrease production of American corn by 10 to 30 percent. [2] this will also raise the prices of food and many will not be able to afford this luxury, creating a new era of poverty in third world countries due to this break in the food chain. [3]


There is also drought to think about, as many mountainous states  rely on getting their water from snowmelt, and once this has disappeared it will cause many issues for many people. countries that lose their sources of water will have no other choice then to be abandoned, leaving many prosperous regions without inhabitence. for regions that are already fairly dry such as Australia  there is huge risks of wildfire spreading  which in the past 20 years, has become an increasingly harsh reality.

I hope this has opened your eyes some what to the serious implications that are going to happen within years to come.
n my next blog i will be discussing Global Warming – The Bigger Picture.

 

References
[1] http://greenliving.nationalgeographic.com/global-warming-affect-daily-life-2680.html

[2] http://www.environmentalgraffiti.com/sciencetech/5-deadliest-effects-of-global-warming/276?image=2#6G73d8JuAYYwsgWs.99

[3] http://library.thinkquest.org/CR0215471/global_warming.htm

[4] http://environment.nationalgeographic.com.au/environment/global-warming/gw-effects/

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Global Warming Part 1 – What is Global Warming?

The next three blogs i will post will be regarding Global Warming.
this includes; What is Global Warming? What does Global Warming Affect? and The Bigger Picture.

There are several reasons for Global warming, it is largely disputed as to which is the real reason that it is occurring but the most commonly agreed with is that Global Warming is Human induced by pollutants or greenhouse gasses.

Global warming is defined as ‘A gradual increase in the overall temperature of the earth’s atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants’. This simply means that there are changes due to the release of greenhouse gasses that are slowly changing the temperature of the earth’s atmosphere.

Global warming happens because greenhouse gases such as carbon dioxide, water vapour, nitrous oxide and methane trap heat and light from the sun in the earth’s atmosphere, this in turn heats the atmosphere.

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Usually there is not so much of these greenhouse gasses stored in the atmosphere, so when the radiation waves from the sun bounce off the earth they can exit. as i have just explained, vice versa happens when there is a build-up of greenhouse gasses, the radiation cannot escape the atmosphere due to the density of molecules in the atmosphere and store’s this radiation as heat energy.

What does this mean for everyone around the world? The future of the earth is not something that we can accurately predict. We have never experienced climate change and the affects are slowly getting more severe (experts say) all we can do is assume based on the data collected so far what the future holds for earth and its Inhabitants.

please follow me and i will soon be posting part 2 – What does Global Warming Affect?

 

 

 

Refrences – http://www.scientificamerican.com/topic.cfm?id=global-warming-and-climate-change
http://en.wikipedia.org/wiki/Global_warming
http://www.nrdc.org/globalwarming/

Global Warming Part 3 – The Bigger Picture

As Global Warming is highly controversial, i figure this would make for some interesting conversation.
Evidence shows that the earth is warming up, however this must be taken into context of natural events. Yes, its true since the industrial age of man there has been a steady increase in the temperature of the world causing such events as polar caps melting, the diminishing ice mass of greenland and rising water levels.

This blog is presenting data collected from research done at the Vostok station in the Antarctic. Hardly new data, it still remains more of a quiet topic as it without a doubt diminishes the importance we put on man being responsible for global warming.

The data collected included retrieving ice core samples from Lake Vostok to a depth of 3623m. it is estimated that the depth of the last ice core taken was from 420,000 years ago, and there was some very interesting figures that resulted from the samples.

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As you can see there is roughly a 110,000 year cycle of the earth heating and cooling, and correspondingly the rise and fall in temperature, so does the CO2. This is because cool water holds CO2 better than warm water does, so as the earth heats up this releases CO2 from ice and cooler regions, giving a higher concentration of CO2 in the atmosphere. as seen below on the graph this puts what i have said so far into context. It is important to understand that this process is a natural part of the Earth’s cycle.

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The core sample’s contense was determined by difference between two isotopes of oxygen trapped in the ice.
The reading of dust, CO2 and Temperature displays that global warming will regardless of our contribution, as on a scale of the natural global warming process, our effects it are quite small.

It is believed that there is about 800 billion tonnes of CO2 in the atmosphere and human activities release about another 27 billion tonnes per year, or 3% of the total. What is important to note is that CO2 in the air dissolves into the oceans and there is a lot more in the oceans than there is in the atmosphere.

I present you with this data not claiming that humans have had nothing to do with global warming, i do believe that we have fastened the process yet global warming was going to occur regardless of the human impact as our contribution is somewhat insignificant.

References –
http://www.collective-evolution.com/2013/02/08/420000-years-of-data-suggestss-global-warming-is-not-man-made/
http://www.antarcticglaciers.org/climate-change/