Thread Rating:
  • 1 Vote(s) - 5 Average
  • 1
  • 2
  • 3
  • 4
  • 5
What happened to global warming?
02-27-2013, 07:52 AM, (This post was last modified: 02-27-2013, 03:16 PM by thokling.)
RE: What happened to global warming?
Nice find, FT. Put the dollars back where they belong.

I found this sneaky thing lurking around the Internet:

Quote:Nuclear: Less CO2 than solar, hydro, biomass
By Mark Halper | February 19, 2013, 6:31 AM PST

[Image: nuclear-v-other-sources-co2.jpg]

There is no such thing as completely "green" energy. All forms of electricity generation have some detrimental environmental impact - some relatively little, some enormous.

One of the most closely watched effects is emissions of carbon dioxide - the sort of thing that makes fossil fuels like coal and natural gas notorious.

Levels of CO2 in the atmosphere are linked to rises in Earth’s temperature, and thus to global warming, climate change and all that. Fossil fuels belch plenty, as the chart above shows. It illustrates how many tonnes of CO2 are emitted per gigawatt hour of electricity generated by different generating technologies.

The chart is a "lifecycle" analysis that takes into account CO2 emitted not only during electricity generation, but also by the mining, manufacturing, construction and other processes it takes to get a power plant up and keep it running.

It’s no surprise that coal and natural gas tower above the others. But some of the other marks might raise a few eyebrows. "Renewable" power sources solar PV and biomass are both more CO2-intense than nuclear, as is hydro. Nuclear is on a par with geothermal, and virtually the same as wind.
Nuclear: Less CO2 than solar, hydro, biomass

"Life-cycle", from what I've been able to gather, refers to the overall time the technology's been in use. So it's only useful, perhaps, if used in more manipulative statistics.

There's another report from a few days before the one you posted which contains the following image:

[Image: makmCdI.png] the Environment
Emissions Produced by 1 Kilowatt-Hour of
Electricity Based on Life-Cycle analysis

According to this chart in units per KwH, hydropower and nuclear power are the leaders in clean CO2 emissions. Wind and biomass are margically better, but still produce up to twice the amount of CO2.

The big belchers per the chart are solar, natural gas and coal. So there's a discrepancy somewhere.

All figures have to be applied against the energy output in KwH to calculate the effectiveness of the technology, placing some sort of value on emissions (likely negative or fractional). But this value placement appears to be paid for by corporations to "independent studies" that favour the corporation.
Truth appears in many forms. Find those that resonate with you.

- "If we do not believe in freedom of speech for those we despise, we do not believe in it at all." - Noam Chomsky
- "Humans are not a rational animal, but a rationalizing one." - Leon Festinger - The World In Action
02-28-2013, 09:21 AM,
RE: What happened to global warming?
The problem with hydro is that it destroys natural ecosystems (with huge impacts on people as well) and nuclear creates the most toxic waste known to man, with existing technology. Their CO2 footprints are irrelevant in the greater picture.
02-28-2013, 07:38 PM,
RE: What happened to global warming?


Possibly Related Threads...
Thread Author Replies Views Last Post
Wink Snow Proves Global Warming ( O RLY!? ) rsol 2 731 10-25-2012, 05:35 PM
Last Post: fireballs
  Astrophysicist Piers Corbyn explains the whole Global Warming aka Climate Change scam icosaface 3 1,856 05-11-2012, 02:17 PM
Last Post: CharliePrime
  Warmlist - A Complete List of Things Caused By Global Warming / Climate Change SerialExpLain 32 5,332 11-16-2011, 06:13 AM
Last Post: icosaface
  Anthropogenic Global Warming - - Darius Alexander Darius 38 9,107 11-14-2011, 08:44 PM
Last Post: JazzRoc
  Global Cooling and the NWO - Global Cooling on the Agenda of the Bilderbergs h3rm35 2 1,061 10-16-2010, 01:00 AM
Last Post: JazzRoc
  Scientists call for a global nuclear renaissance in new study nik 1 784 08-24-2010, 12:45 AM
Last Post: JazzRoc
Exclamation Climategate U-turn as scientist at centre of row admits: There has been no global war joeblow 6 2,054 05-10-2010, 01:44 AM
Last Post: FastTadpole
Thumbs Up 75 Reasons to be Skeptical of "Global Warming" h3rm35 1 945 02-24-2010, 08:06 AM
Last Post: FastTadpole
  'Bin Laden' blames US for global warming TriWooOx 2 735 02-03-2010, 03:40 AM
Last Post: Genteel
  Top climate change adviser calls for honesty from scientists in global warming debate TriWooOx 0 588 01-27-2010, 08:24 PM
Last Post: TriWooOx

Forum Jump:

Users browsing this thread: 1 Guest(s)