Anthropogenic global warming? Fact or fiction?

I believe cutting down trees and dumping waste into the Ocean is bad. We also should re-use stuff more, but I also know the solar fluctuations of the sun not only affect Satellite transmissions but they can affect Heat patterns on the Earth as well.

People fail to realize that "Going Green" is a Trillion dollar trend, and just like the latest Smartphone, is marketed heavily to make more profit.

IntenseGamingAZ

UN REPORT on Climate Change:

Humans contribute approximately 3.4 percent of annual CO2 emissions

Humanity is responsible for .28% of greenhouse effect; volcanoes, oceanic biological activity, decaying plants, animal activity, etc is 4.72%; water vapor is 95%.

There was an explosion of life forms 550 million years ago (Cambrian Period), when CO2 levels were 18 times higher than today. During the Jurassic Period, when the dinosaurs roamed the Earth, CO2 levels were as much as nine times higher than today.

Something I have always found interesting is that the IPCC Fourth Report states that warming in the last 100 years has caused about a 0.74°C increase in global average temperature. So 100 years ago they were using just as accurate thermometers as we do now... so precise they can measure quarters of a degree. AND thats worldwide, meaning in Mumbai 100 years ago they had the same awesome thermometers we have now?! REALLY?!

UN REPORT on Climate Change:

Humans contribute approximately 3.4 percent of annual CO2 emissions

Humanity is responsible for .28% of greenhouse effect; volcanoes, oceanic biological activity, decaying plants, animal activity, etc is 4.72%; water vapor is 95%.

There was an explosion of life forms 550 million years ago (Cambrian Period), when CO2 levels were 18 times higher than today. During the Jurassic Period, when the dinosaurs roamed the Earth, CO2 levels were as much as nine times higher than today.

Something I have always found interesting is that the IPCC Fourth Report states that warming in the last 100 years has caused about a 0.74°C increase in global average temperature. So 100 years ago they were using just as accurate thermometers as we do now... so precise they can measure quarters of a degree. AND thats worldwide, meaning in Mumbai 100 years ago they had the same awesome thermometers we have now?! REALLY?!

irishscott99

Care to show a link?

Humans contribute roughly 30gt of carbon to the atmosphere annually. The atmosphere is increasing by 15gt annually.

That is the carbon cycle. You can see natural emissions and uptake are roughly equal. We are adding more carbon into the atmosphere that had previously been taken out of this cycle. (Note that the numbers for fossil fuel emissions are Carbon, not Carbon Dioxide). Your numbers concerning the effect greenhouse gases have in the atmosphere is also wrong. Water vapour actually makes up between 30% and 70% of the total and, though water vapour is the most prominent greenhouse gas worldwide, the amount of atmospheric water vapour is dependent on temperature. As an air parcel warms the saturation level of that air parcel increases and it increases the amount of water vapour it is able to hold. As that air parcel decreases in temperature it loses it's ability to hold water vapour and, if saturation has already been reached, cooling that air parcel would cause that water vapour to condense and rain out. Water vapour has an atmospheric residency of 2 weeks while CO2 has an atmospheric residency of, on average, 85 years.

Satellites have been measuring atmospheric temperatures since 1979. Radiosondes have been measuring atmospheric temperatures since 2958. Temperature measurements actually began in 1850.

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

Our Winters in the UK are much colder with more snow in the last three years running. The summers have not changed at all mind.

At the moment I can agree with the Global Warming stuff, I got a feeling our winters are not going to go back to normal, but gradially go more into the extreme they are now. None of it bothers me however, I've always said, I hope the world ends in my lifetime because then I know I'm not going to be missing out on anything.