Expect catastrophic climate change within 50 years.
So says a new study prepared for the British Department for Energy and Climate Change.
Met Office: High End Temperature Change
Comparison of surface temperature projections from the high-end emissions scenario, without carbon cycle feedbacks. Temperature increases between 1961-1990 and 2090-2099, averaged over all high-end members.
That bad news is reiterated in a new report issued by the United Nations Environment Programme, entitled “Climate Change Science Compendium 2009.”
An average global temperature rise of 7.2F (4C) could happen by 2060, causing droughts around the world, sea level rises and the collapse of important ecosystems.
The Arctic could see an increase in temperatures of 28.8F (16C), while parts of sub Saharan Africa and North America would be devastated by an increase in temperature of up to 18F (10C). Britain’s temperature would rise by an average 7.2F (4C).
The study included new figures on increased emissions from fossil fuels and considered the effect global warming will have on the ability of the oceans and rainforests to absorb carbon dioxide.
The global picture shows rainfall could decrease by 20 per cent in Central America, the Mediterranean and parts of coastal Australia, causing mass drought. Temperature rises in the Amazon would cause the rainforests to die, while Alaska and Siberia would see the melting of the permafrost causing more carbon dioxide to be released.
NASA reports we’re already seeing increased atmospheric methane levels due to melting permafrost, caused by global warming. Unusually high temperatures in the Arctic, the burning of tropical forests, and heavy rains in the tropics drove a global increase in atmospheric methane in 2007 and 2008 after a decade of near-zero growth (the longer periods of rainfall and larger wetland areas resulted in microbes producing more methane). Methane is the second most abundant greenhouse gas after carbon dioxide – and it’s more than 20 times as potent.
Both reports stress that it will be possible to avoid the most catastrophic impacts of climate change only if there is immediate, cohesive and decisive action to cut emissions.
But the world’s governments continue to fiddle while Earth burns.
Copenhagen is dead. Not that the talks aimed at improving or replacing the Kyoto Protocol ever amounted to a serious attempt to avert global warming.
As James Hansen keeps pointing out, burning the world’s remaining oil and gas is enough to get us into a dangerous zone for atmospheric carbon dioxide – but not so far that we couldn’t solve the problem. If you add coal and put that carbon in the atmosphere, then there is no practical way to solve the problem. No climate policy is serious if it allows coal to continue to be used and emit the CO2 in the atmosphere.
So you just have to look at the proposed policy and see what it does with coal. No government or intergovernmental organization is proposing to eliminate coal. The World Bank is spending billions on coal-fired power stations. Three countries – the U.S., China and India – are planning to build nearly 850 new coal-fired plants, which would pump as much as an extra 2.7 billion tons of carbon dioxide, five times as much carbon dioxide into the atmosphere as the Kyoto Protocol aims to reduce. Waxman-Markey not only assures that we will continue to run existing coal plants, it actually gives approval for additional coal plants.
At the recent G-20 meeting, negotiators were patting themselves on the back for agreeing to the tiny step of eliminating fossil fuel subsidies, claiming this would make a major contribution to curbing energy demand and emissions growth (according to the International Energy Agency, energy subsidies in the 20 largest non-OECD countries amounted to a staggering $310 billion in 2007). The final agreement on fossil-fuel subsidies, naturally, includes no timeline. With no deadline, it won’t happen.
Obama in his address to the UN said he was proud that “the United States has done more to promote clean energy and reduce carbon pollution in the last eight months than at any other time in our history.” But not one word about coal, except to boast “we’re investing billions to capture carbon pollution so that we can clean up our coal plants.” Earth is burning, and Obama is singing the siren song of clean coal.
The absence of any talk of banning coal is proof that no country, no intergovernmental organization, is yet taking the climate crisis seriously.
You can bet they won’t. Until it’s too late.