While CO2 has increased by 85 ppm from when measurements began in 1958 and are estimated to have risen by 120 ppm since 1750, we should also realize that increases of 80 ppm to 100 pm occurred during the last 3 glaciations without humans burning fossil fuels.
” Air trapped in bubbles in polar ice cores constitutes an archive for the reconstruction of the global carbon cycle and the relation between greenhouse gases and climate in the past. High-resolution records from Antarctic ice cores show that carbon dioxide concentrations increased by 80 to 100 parts per million by volume 600 ± 400 years after the warming of the last three deglaciations. Despite strongly decreasing temperatures, high carbon dioxide concentrations can be sustained for thousands of years during glaciations; the size of this phase lag is probably connected to the duration of the preceding warm period, which controls the change in land ice coverage and the buildup of the terrestrial biosphere.”
HADCRUT4 1930 to 1949 by Month.
Normally you see this part of the graph with 2 or 3 red ticks because it is done annually.
Keep in mind the highest red tick is an anomaly of 0.355C for August 1945. The anomaly for August 2012 was 0.532C. Which is only 0.177C warmer. (Corrected)
Click to see bigger.
“Far from being “carbon neutral,” wood-burning biomass actually emits more carbon dioxide (the primary global warming greenhouse gas) per unit of energy produced than either gas or coal. Yes, trees can grow back and reabsorb that carbon, but that growth takes many years. The most recent studies show that
The renewability of wood is also questionable, as forests would be threatened by any meaningful increase in electricity generation using biomass as fuel. Replacing just 10 percent of the coal used in Pennsylvania would require more than 12.8 million green tons of wood per year — far more than the state’s annual commercial wood harvest (about 5 million tons).“
Read more here.
The new trendy fuel being proposed to replace the EPA/Hansen vilified coal is wood and/or biomass.
One biomass power plant “will emit 1,732 tons per day of carbon dioxide to produce 380,000 MWh of power annually, an emission rate of 3,327 lbs of CO2/MWh. For comparison carbon dioxide emission rates are 2,117 lbs/MWh for existing coal plants, 1,314 lbs/MWh for existing gas plants
and 760 lbs/MWh for new power plants.”
Lets put that in a table.
||lbs of CO2/Megawatt Hour
|Older Natural Gas
|New Natural Gas
“wood fueled biomass power plants emit about 50% more CO2 per MWh than existing coal plants, 150% more than existing natural gas plants and 330% more than new gas power plants.”
Thats right. Biomass/Wood produce 330% more CO2 than a new super-efficient natural gas power plant burning natural gas. And thanks to fracking the gas is super-cheap.
If you believe in the “CO2 will end the world scam”, then please fight hard against wood and biomass power plants. And fight hard for new natural gas power plants.
If you don’t believe, then laugh at the idiots who do. And tell them the truth.
If you are against fracking, and for biomass/wood power planets, you hate the planet.