Do you think it is real, or a myth..
Personally I think that the amount of CO2 pollution humans are currently letting loose in the atmosphere definitely is having an impact on the Earth's health, but not for the typical reasons.
For example, I read somewhere recently that the Earth's balance is veryyyyy fragile, in that the Earth is able to handle it's own pollution (eg volcanic eruptions) just fine; the effects are countered by the ocean, as the water absorbs alot of the pollution.
For example: It was something like the Earth releases 100000tonnes of green house gases each year. Then the ocean absorbs 100000tonnes of green house gases each year, thus countering the effects. Then humans come along and release a further 20000tonnes of green house gases per year and this upsets the balance.
My point being that although we are releasing lots of CO2 into the atmosphere, this is not the reason the Earth is in meltdown. The reason is simply because the Earth cant handle the extra load.
Anyway what do you think? Is Global Warming real? Is it a threat? Can we prevent it?
First and foremost. Why only CO2? Methane has a much larger greenhouse effect.
I certainly think global warming is real, but not because of human influence. Is it a threat? No, not really. We really need to slow down our consumption, though.
Studies have shown that there have been 90, 000 year long ice ages separated by 10, 000 years of warmth. We have been due for an ice age for millennia.
A point about Earth's climate over the past billion years... Most of the mass extinctions were caused by natural climate change or mass overpopulation by a certain species. The largest being the "Great Dying" around 250 million years ago was "caused" by global warming. Namely, it occurred because of an asteroid impact, a huge influx in volcanic activity, sea level fluctuations and abnormal ocean currents due to formation of Pangaea. In this extinction, 84% of genera died out. Incredibly unlikely to ever happen again and it proves that animals can survive in such conditions. What species is better at surviving than humans? The most likely cause of human extinction would be ourselves.
Some have speculated that humans will live till the end of the universe, others say we won't live to see the next century. So, what will it be?