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@Mad Indian - You make some good pseudo science now please allow me to enlighten you with some facts!
1) yes the earth has been through multiple cycles of cooling and heating however this is different.how you ask well read on!Also no matter what you say all reputed scientists agree that global warming is a fact today.
Earth has experienced climate change in the past without help from humanity. We know about past climates because of evidence left in tree rings, layers of ice in glaciers, ocean sediments, coral reefs, and layers of sedimentary rocks. For example, bubbles of air in glacial ice trap tiny samples of Earth’s atmosphere, giving scientists a history of greenhouse gases that stretches back more than 800,000 years. The chemical make-up of the ice provides clues to the average global temperature.
Using this ancient evidence, scientists have built a record of Earth’s past climates, or “paleoclimates.” The paleoclimate record combined with global models shows past ice ages as well as periods even warmer than today. But the paleoclimate record also reveals that the current climatic warming is occurring much more rapidly than past warming events.
As the Earth moved out of ice ages over the past million years, the global temperature rose a total of 4 to 7 degrees Celsius over about 5,000 years. In the past century alone, the temperature has climbed 0.7 degrees Celsius, roughly ten times faster than the average rate of ice-age-recovery warming.
Models predict that Earth will warm between 2 and 6 degrees Celsius in the next century. When global warming has happened at various times in the past two million years, it has taken the planet about 5,000 years to warm 5 degrees. The predicted rate of warming for the next century is at least 20 times faster. This rate of change is extremely unusual.
In the local sphere you must have noticed the shifting patterns of the Monsoons and the global climate chaos, this is due to abnormal heating of ocean and wind currents(which by the way feed of each other), apart from these the rapidly increasing desertification of areas combined with receding glaciers and melting ice caps all point towards climate change and global warming being interrelated.
As far as the point raised by @ezsasa about Bangalore and Hyderbad and the change in climate in both cities, that is a completely different topic called UHI(Urban heat islanding) whish is only tertially related to global warming. simply put cities trap heat and the hotter it gets(due to global warming) the hotter cities get( in some case upto 2 degree hotter than the surrounding countryside).
2) Coming to the point you made about Carbon dioxide and Methane Levels and i quote
Since the Industrial Revolution began in about 1750, carbon dioxide levels have increased nearly 38 percent as of 2009 and methane levels have increased 148 percent.This is not a minuscule increase by any parameter.We need to control CO2 levels and pronto.
3) You say that developing countries should not have to pay as big a price as developed nations, here i somewhat tend to agree with you. The developed world having caused the largest chunk of global warming must now help to pay for it there is no doubt on that.
There is no doubt on the fact that India and China have little choice but to use Fossil Fuels/Nuclear power as primary energy generation sources as solar/wind/tidal can be little more than a filler at the moment.I totally support using more nuclear Energy .Cold Fusion could be the Holy Grail we're all waiting for here.
However there is no easy solution out of this one simply because global warming while being global is localized as well. simply put if Germany has now turned many of their villages over to "Green energy" these areas will have a better climate than similar regions in India where we have a coal power station.This is due to localized heating and localized pollution around the plant.
4) You speak of Oceans being unaffected as the primary generator of Oxygen for the planet , however that too is under threat due to two totally differing reasons
a) Biological runoff from Farming zones enters oceans and creates a nutrient rich zone where algae and bacteria flourish causing a population explosion that depletes that local zone of oxygen, there are some 400 such zones worldwide today.
b) Scientists point to two reasons to expect a worldwide drop in ocean oxygen. One is the simple fact that as water gets warmer, it can hold less dissolved oxygen. The other reason is subtler. The entire ocean gets its oxygen from the surface — either from the atmosphere, or from photosynthesizing algae floating at the top of the sea. The oxygen then spreads to the deep ocean as the surface waters slowly sink.
Global warming is expected to reduce the mixing of the ocean by making surface seawater lighter. That’s because in a warmer world we can expect more rainfall and more melting of glaciers, icebergs, and ice sheets. Since freshwater is less dense than salt water, the water at the ocean’s surface will become lighter. The extra heat from the warming atmosphere will also make surface waters expand — and thus make them lighter still. The light surface water will be less likely to sink — and thus the deep ocean will get less oxygen. Instead, more of the oxygen will linger near the surface, where it will be used up by oxygen-breathing organisms.
http://e360.yale.edu/feature/a_looming_oxygen_crisis_and_its_impact_on_worlds_oceans/2301/
http://e360.yale.edu/feature/how_long_can_oceans_continue_to_absorb_earths_excess_heat/2860/
http://e360.yale.edu/feature/resilience_a_new_conservation_strategy_for_a_warming_world/2893/
http://earthobservatory.nasa.gov/Features/GlobalWarming/page3.php
http://earthobservatory.nasa.gov/Features/GlobalWarming/page2.php
http://www.world-nuclear.org/info/Energy-and-Environment/Climate-Change---The-Science/
https://www2.ucar.edu/news/how-much-has-global-temperature-risen-last-100-years
http://www.c2es.org/docUploads/India-FactSheet-09-08.pdf
1) yes the earth has been through multiple cycles of cooling and heating however this is different.how you ask well read on!Also no matter what you say all reputed scientists agree that global warming is a fact today.
Earth has experienced climate change in the past without help from humanity. We know about past climates because of evidence left in tree rings, layers of ice in glaciers, ocean sediments, coral reefs, and layers of sedimentary rocks. For example, bubbles of air in glacial ice trap tiny samples of Earth’s atmosphere, giving scientists a history of greenhouse gases that stretches back more than 800,000 years. The chemical make-up of the ice provides clues to the average global temperature.
Using this ancient evidence, scientists have built a record of Earth’s past climates, or “paleoclimates.” The paleoclimate record combined with global models shows past ice ages as well as periods even warmer than today. But the paleoclimate record also reveals that the current climatic warming is occurring much more rapidly than past warming events.
As the Earth moved out of ice ages over the past million years, the global temperature rose a total of 4 to 7 degrees Celsius over about 5,000 years. In the past century alone, the temperature has climbed 0.7 degrees Celsius, roughly ten times faster than the average rate of ice-age-recovery warming.
Models predict that Earth will warm between 2 and 6 degrees Celsius in the next century. When global warming has happened at various times in the past two million years, it has taken the planet about 5,000 years to warm 5 degrees. The predicted rate of warming for the next century is at least 20 times faster. This rate of change is extremely unusual.
In the local sphere you must have noticed the shifting patterns of the Monsoons and the global climate chaos, this is due to abnormal heating of ocean and wind currents(which by the way feed of each other), apart from these the rapidly increasing desertification of areas combined with receding glaciers and melting ice caps all point towards climate change and global warming being interrelated.
As far as the point raised by @ezsasa about Bangalore and Hyderbad and the change in climate in both cities, that is a completely different topic called UHI(Urban heat islanding) whish is only tertially related to global warming. simply put cities trap heat and the hotter it gets(due to global warming) the hotter cities get( in some case upto 2 degree hotter than the surrounding countryside).
2) Coming to the point you made about Carbon dioxide and Methane Levels and i quote
No you are wrong the levels are increasing far more rapidly than can be explainedIf you cook with wood inside your house , it will fill your house with smoke, CO2 and some poisonous gases like CO. But when that reaches the air, its concentration becomes so minuscule to affect the climate in any meaningful way. Thats my position now.
Since the Industrial Revolution began in about 1750, carbon dioxide levels have increased nearly 38 percent as of 2009 and methane levels have increased 148 percent.This is not a minuscule increase by any parameter.We need to control CO2 levels and pronto.
3) You say that developing countries should not have to pay as big a price as developed nations, here i somewhat tend to agree with you. The developed world having caused the largest chunk of global warming must now help to pay for it there is no doubt on that.
There is no doubt on the fact that India and China have little choice but to use Fossil Fuels/Nuclear power as primary energy generation sources as solar/wind/tidal can be little more than a filler at the moment.I totally support using more nuclear Energy .Cold Fusion could be the Holy Grail we're all waiting for here.
However there is no easy solution out of this one simply because global warming while being global is localized as well. simply put if Germany has now turned many of their villages over to "Green energy" these areas will have a better climate than similar regions in India where we have a coal power station.This is due to localized heating and localized pollution around the plant.
4) You speak of Oceans being unaffected as the primary generator of Oxygen for the planet , however that too is under threat due to two totally differing reasons
a) Biological runoff from Farming zones enters oceans and creates a nutrient rich zone where algae and bacteria flourish causing a population explosion that depletes that local zone of oxygen, there are some 400 such zones worldwide today.
b) Scientists point to two reasons to expect a worldwide drop in ocean oxygen. One is the simple fact that as water gets warmer, it can hold less dissolved oxygen. The other reason is subtler. The entire ocean gets its oxygen from the surface — either from the atmosphere, or from photosynthesizing algae floating at the top of the sea. The oxygen then spreads to the deep ocean as the surface waters slowly sink.
Global warming is expected to reduce the mixing of the ocean by making surface seawater lighter. That’s because in a warmer world we can expect more rainfall and more melting of glaciers, icebergs, and ice sheets. Since freshwater is less dense than salt water, the water at the ocean’s surface will become lighter. The extra heat from the warming atmosphere will also make surface waters expand — and thus make them lighter still. The light surface water will be less likely to sink — and thus the deep ocean will get less oxygen. Instead, more of the oxygen will linger near the surface, where it will be used up by oxygen-breathing organisms.
http://e360.yale.edu/feature/a_looming_oxygen_crisis_and_its_impact_on_worlds_oceans/2301/
http://e360.yale.edu/feature/how_long_can_oceans_continue_to_absorb_earths_excess_heat/2860/
http://e360.yale.edu/feature/resilience_a_new_conservation_strategy_for_a_warming_world/2893/
http://earthobservatory.nasa.gov/Features/GlobalWarming/page3.php
http://earthobservatory.nasa.gov/Features/GlobalWarming/page2.php
http://www.world-nuclear.org/info/Energy-and-Environment/Climate-Change---The-Science/
https://www2.ucar.edu/news/how-much-has-global-temperature-risen-last-100-years
http://www.c2es.org/docUploads/India-FactSheet-09-08.pdf