Prove global warming is a natural cycle?

Answer 1

Why? The onus should be on those that claim that "global warming" is man made.

The Earth has gone through many cooling/warming cycles. Why do you think this cycle is any different?

Answer 2

Don't you love those people who can't provide a reply so they say 'prove it's not'.

If I said the world was flat you would prove it was round by showing me the evidence. If I said the moon was made of cream cheese you would show me the evidence to prove otherwise. Ask a skeptic to prove global warming is natural and they fall remarkably silent - they want to refute that it's manmade but have nothing to refute it with, if they did they would offer up the evidence.

Fair play to Dr T who has at least come up with something. All that the Vostok ice core record shows, or any other temperature record for that matter, is how temperatures have fluctuated over time. The difference between 'then' and now is that the historic warming events are tied to the natural cycles that both the Sun and Earth go through, this time there are no natural cycles to account for the warming. In fact, the current position of the planet within those cycles is one of very slight cooling.

Further, the past warming and cooling events have been excessively slow by comparison to how things are changing now. During the end of the last ice age temps rose 7°C in 7500 years - roughtly 1°C per 1000 years, today they're rising 19 times as fast.

Pragmatic Alien's idea is something that is actually being considered. British astronomer Roger Angel calculated that some sunlight could be blocked by constructing a gigantic solar sunshade 1.5 million miles from Earth at what's known as the L1 point - where the Sun and Earth's gravity cancel each other out.

The sunshade Angel proposes would be constructed from 16 trillion microscopically thin sheets of glass, each one equipped with solar sails and an on board computer to control it's movement in space. His idea is to launch electromagnetically propelled launches into space, each carrying millions of discs. For the time being neither the technology of the finances exist for such a large scale scheme. There are similar less ambitious schemes that are being considered as well.

Answer 3

Draw a graph of solar activity, temperature and CO2 levels.

You will find that the temperature follows the solar activity (flares etc), this of course makes sense, and the CO2 levels follow temperature.

This is because as the Earth warms, the oceans do too, and when they warm up, they release CO2.

Also, look at the ice ages, and that really cold spell in London in around the Victorian era (can't remember exactly) when the Thames froze over.

And, many global warming scientists have admitted that e are currently at a peak of a natural warming cycle, they're just worried in case it doesn't stop.

Answer 4

Why did you ask this question? It is so stupid! I mean have you gone to school? Let me say this in a better way: The Earth has been going through cycles every once in a while! And why would the Earth end? That is stupid! God said that he will come to this planet to establish peace not harm! You may think I am too religious, but I'm not! This is how the earth is and this is what scientists also said exept the religious part!

Answer 5

Also take a look at this graph and see how it seems to correlate with Global Warming and Cooling Cycles. Isn't it interesting that CO2 levels, Temperature, and the earths changing position all cycle together and always have.

http://en.wikipedia.org/wiki/Milankovitch_cycles

Answer 6

If you look at ice cores, co2 levels and global temperature can be figured out. Global warming and cooling happens all the time. Co2 levels follow temperature almost exactly. Co2 today is higher than it has ever been. This is because we are emitting so much. If we do not stop, the temperature will follow the co2 levels.

In a laboratory, we can heat a vial of oxygen and one of co2. The co2 gets hotter and stays hot longer than the oxygen. Easy proof that co2 retains heat, therefore more of it means higher temperature.

Answer 7

Yes I also believe it is a natural cycle, although human activity may help speeding it up somewhat.
I also believe we have now the technology to do something about it.
What about sunglasses for the Earth ?
Not joking.
We could put in orbit some kind of screening material to partially reflect back into space some of the Sun's radiation.
The screen (dust or sheets) should be positioned at a geostationary orbital altitude, but turning the opposite way as the geostationary satellites, thus remaining always in front of the Sun as the Earth turns.

Answer 8

Simple. See the Vostok ice core data (reference). Note the cyclic warming and cooling in the historical record? Also note that the present warming trend began about 20,000 years ago. See how the atmospheric concentration of carbon dioxide also began to rise 20,000 years ago as a result of the warming?

Answer 9

Dr. T's and GABY's data, don't show recent history. We've only been causing the problem for about 40 years. That ended a period where we were cooling, just a little, because solar radiation is decreasing.

This graph shows what's going on, which doesn't remotely resemble any historical change - it's WAY too fast. Ten peer reviewed studies:

http://www.globalwarmingart.com/wiki/Image:2000_Year_Temperature_Comparison_png

Do people think all these respected scientific organizations don't understand previous historical changes? They ALL say it's real, and mostly caused by us.

http://en.wikipedia.org/wiki/Scientific_opinion_on_climate_change

Answer 10

ask the wooly mammoth and saber toothed tigers oh wait you can't the died after the last ice age 10,000 years ago