how is global warming not caused by nature?

Question

this is another thing i have to research for my debate please answer and thank you for your answers.

Answer 1

CO2 is 30% higher than it has been for 650,000 years. Methane is 130% greater. These are two of the main pollutants humans put into the atmosphere in excess, and they are two of the primary greenhouse gases.

Look at the 'hockeystick', which shows a dramatic warming since 1950 after a fairly stable climate for 1000 years. In fact, the 10 hottest years in recorded history have all happened since 1990, with 2005 being the hottest.
(see links below)

How's that for proof of man's fault in this? There is ample proof, any real scientist will tell you that.

There has NEVER been an article doubting man's influence on global warming published in a peer-reviewed journal. A recent study of almost 1000 proved that.

Yes, the earth naturally heats and cools, but the rate and amount we are warming now is unprecedented in the recent geologic past. We are doing this, and we must stop it. This is not some political statement or rhetoric. This is science trying to educate a crass, ignorant public of the damage they are doing. The magnitude of temperature increase ALREADY is about 10x that of the 'little ice age' of the middle ages, and rate and amount are only going up.

Just to be clear, glacial and interglacial cycles are mainly controlled by astronomical fluctuations, but we have a detailed record of the last 7 cycles, and what the climate and CO2 is doing now is way different and extreme. The rate of increase is much higher than in the past AND the value itself is much higher.

HI CO2:
http://news.bbc.co.uk/1/hi/sci/tech/4467420.stm
HOCKEY STICK:
http://news.bbc.co.uk/1/hi/sci/tech/5109188.stm
General climate stuff:
http://news.bbc.co.uk/1/hi/sci/tech/3897061.stm

Answer 2

There are great answers here. But the question how is Global warming Not cause by Nature. Now that's tough.

Nature, Jungles, Oceans, Forests are our Filters. We have pretty much messed those up by deforestation ,mining, farming, cities and plain old pollution and my fovorite Massive over population.

You know cant come to a pin point answer on how Nature is not involved.

Answer 3

While it's true that past events in earth history have led to warm periods, the correlation between fossil fuel consumption by man and rising C02 levels is now undeniable and considered a scientific fact, and high CO2 levels causes overall temperature increases. Most people will readily believe that we're actually on the verge of using up all the world's reserves of oil and fossil fuels, and yet somehow burning all this mass doesn't have an impact, and we blame nature instead?

Answer 4

One of the most abundant greenhouse gases is CO2. Nature has been removing carbon dioxide from the atmosphere for more than 250 million years by storing the carbon in vast deposits of coal, shales, and oil when plants die under certain conditions. There are no natural processes that convert these deposits back into atmospheric CO2 (unless the deposits were somehow brought back to the surface). Humans have been mining these carbon sources and burning them as fuel, which releases the stored carbon back into the atmosphere. In a single year, we release a volume of CO2 that took nature thousands of years to convert to oil or coal. So, nature has been reducing the amount of CO2 in the atmosphere, while humans have been increasing the amount of CO2 in the atmosphere at a rate that is thousands of times faster than the changes in CO2 that have occurred naturally.

Answer 5

while their are natual cooling and warming cycles, the amount of greenhouse gasses like carbon dioxide in the atmosphere that trap solar heat suggests that human interference will be driving global warming waaaay off of the natural scale.

Answer 6

because! we create all of the pollution that and carbon monoxide that is eating holes in out ozone layer. because of the depleating ozone we feel the effectd of the sun much higher.

Answer 7

it is caused mostly by nature, but if your debating against that you should talk about emissions from cars and industial plants

Answer 8

I think so.

Global warming would make more plant life witch would turn co2 into o2.
Its a balance.

Answer 9

it IS caused by nature. just not so rapidly. we help it along.