Just Wondering wrote in
:

On 7/2/2012 5:38 PM, Doug Miller wrote:
Just Wondering wrote in
news:4ff1d13e$0$26191$882e7ee2 @usenet-news.net:

Start with a calculation of how much energy it would take to warm
the upper 50 feet of ocean by 1 degree F.
Easily enough done.

Water surface area of the Earth: 362,000,000 km^2 = 3.62E8 km^2 =
3.62E14m^2 Thus the top 15 meters has a volume of approximately
5.43E15 m^3 = 5.43E18 liters Its mass is approximately 5.4E18 kg =
5.4E21 g Energy required to raise the temperature by 1 deg F = 0.56
deg C = 5.4E21 * 0.56 = approx 3E21 cal = 1.3E22 joules

Roughly 13,000,000,000,000,000,000,000 joules (13 sextillion).

I would be very surprised if all
the energy released by human activity in the last 50 years, if it
all went directly into heating the oceans, would be enough to
accomplish that.
It's close.

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

But very little of that energy goes into heating the oceans. Most of
it eventually radiates into space.

The fact that we are doing things to prevent that radiating into space is
what makes global warming a fact and a problem.

--
Best regards
Han
email address is invalid