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Originally posted by sarahlm
Global warming or climate change doesn't exist. It's the Earth's natural cycle, carbon increases and decreases naturally the Earth warms up and then cools down naturally and the government are using to scare people and cash in off the back of it. The extreme weather around the world that's happening is probably more man made with Geo-engineering and things like that. They can blame it on our 'carbon footprint' as much as they like, but I don't buy it.
The biggest mysteries of this is why did the methane release level off for nearly a decade from the late 1990's until 2007, and then why did it suddenly begin rapidly increasing again and it did worldwide, as shown in the graph below.
(Your link)
One surprising feature of this recent growth is that it occurred almost simultaneously at all measurement locations across the globe. However, the majority of methane emissions are in the Northern Hemisphere, and it takes more than one year for gases to be mixed from the Northern Hemisphere to the Southern Hemisphere.
Originally posted by evictiongnostic
Originally posted by sarahlm
Global warming or climate change doesn't exist. It's the Earth's natural cycle, carbon increases and decreases naturally the Earth warms up and then cools down naturally and the government are using to scare people and cash in off the back of it. The extreme weather around the world that's happening is probably more man made with Geo-engineering and things like that. They can blame it on our 'carbon footprint' as much as they like, but I don't buy it.
So what do you propose we do when oil and coal run out? No matter what you believe about global warming we have to start shifting over to solar. Do you really think advanced civilizations power themselves by burning things?
Originally posted by nOraKat
What is not fake is the alarming rate at which the North and South poles are melting and giving us this crazy weather due to increased moisture and other factors.
I think it is really retarded that even knowing this, we still continue to drive gas powered cars. We should have been converted to full electric cars a long time ago, using something like Thorium electric plants for energy
Originally posted by catswithbigpaws
I don't even care about global warming, yet our abundant use of unclean and unsustainable energy sources is disgusting to me. It's inevitable they're harmful to the environment, such as oil spills and habitat fragmentation due to mining. This is what we should be focusing on. The slight heating the planet honestly looks pretty trivial.
Also, the rise in CO2 DOES have anthropogenic causes. The planet does not easily release tons of CO2 by itself. In order to release a large amount of CO2 into the atmosphere, sources containing it must be altered/destroyed to where they do not contain CO2 anymore. For example, deforestation leads to an increase of CO2. The depleted biosphere then causes an increase in CO2 in the atmosphere. Fossil fuels, which are most often deemed to be the culprit of CO2 inputs into the atmosphere, when combusted, obviously increase CO2. The major natural process of Earth that increases CO2 is volcano eruptions, and those do not happen very much.
I recommend all of you research this stuff or take an environmental/earth science class before you speak.edit on 18-3-2013 by catswithbigpaws because: (no reason given)
Originally posted by evictiongnostic
Originally posted by sarahlm
Global warming or climate change doesn't exist. It's the Earth's natural cycle, carbon increases and decreases naturally the Earth warms up and then cools down naturally and the government are using to scare people and cash in off the back of it. The extreme weather around the world that's happening is probably more man made with Geo-engineering and things like that. They can blame it on our 'carbon footprint' as much as they like, but I don't buy it.
So what do you propose we do when oil and coal run out? No matter what you believe about global warming we have to start shifting over to solar. Do you really think advanced civilizations power themselves by burning things?
Originally posted by Kali74
reply to post by votan
Everything we use petroleum for as far plastics etc, we can use other things for.
Originally posted by Kali74
reply to post by Wrabbit2000
Antarctic sea ice is growing, land ice is shrinking and breaking off this is a bad sign.edit on 18-3-2013 by Kali74 because: (no reason given)
Source
Fourth Quarter
While the weather in North America tends to get colder during the fourth quarter of the year, the temperature increases in Antarctica during this part of the year. The average high temperature in October is about -60 degrees and the average low for the month is about -65 degrees. The average high temperature in November increases to -36 and then -16 in December. The average low for November is -40 degrees F and -20 degrees F for December.
Yearly Averages
The average high temperature for the year in Antarctica is about -49 degrees F, while the average low temperature for the continent is about -56 degrees F.
Source
It is roughly the size of the United States and Mexico combined and is almost completely covered by a layer of ice that averages more than one mile in thickness, but is nearly three miles thick in places. This ice accumulated over millions of years through snowfall. Presently, the Antarctic ice sheet contains 90% of the ice on Earth and would raise sea levels worldwide by over 200 feet were it to melt.
The retreat of West Antarctica's glaciers is being accelerated by ice shelf collapse. Ice shelves are the part of a glacier that extends past the grounding line towards the ocean they are the most vulnerable to warming seas. A longstanding theory in glaciology is that these ice shelves tend to buttress (support the end wall of) glaciers, with their mass slowing the ice movement towards the sea, and this was confirmed by the spectacular collapse of the Rhode Island-sized Larsen B shelf along the Eastern edge of the Antarctic Peninsula in 2002. The disintegration, which was caught on camera by NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) imaging instruments on board its Terra and Aqua satellites, was dramatic: it took just three weeks to crumble a 12,000-year old ice shelf. Over the next few years, satellite radar data showed that some of the ice streams flowing behind Larsen B had accelerated significantly, while others, still supported by smaller ice shelves, had not 9. This dynamic process of ice flowing downhill to the sea is what enables Antarctica to continue losing mass even as surface melting declines.
“Until now these changes in ice drift were only speculated upon, using computer models of Antarctic winds. This study of direct satellite observations shows the complexity of climate change. The total Antarctic sea-ice cover is increasing slowly, but individual regions are actually experiencing much larger gains and losses that are almost offsetting each other overall. We now know that these regional changes are caused by changes in the winds, which in turn affect the ice cover through changes in both ice drift and air temperature. The changes in ice drift also suggest large changes in the ocean surrounding Antarctica, which is very sensitive to the cold and salty water produced by sea-ice growth.
“Sea ice is constantly on the move; around Antarctica the ice is blown away from the continent by strong northward winds. Since 1992 this ice drift has changed. In some areas the export of ice away from Antarctica has doubled, while in others it has decreased significantly.”
Originally posted by Kali74
reply to post by Wrabbit2000
Antarctic sea ice is growing, land ice is shrinking and breaking off this is a bad sign.edit on 18-3-2013 by Kali74 because: (no reason given)