With the United Nations Rio+20 summit on sustainable development set to open next Wednesday, negotiators from developing nations walked out of a key working group over disagreements with wealthier nations about funding environmentally responsible development and the transfer of green technology. (more…)
Mexico President Felipe Calderon this week signed into law ambitious climate targets aimed at drastically cutting the nation’s greenhouse gas emissions and increasing the share of clean energy in the coming decades.
The law, passed unanimously by the Senate, commits Mexico to cut greenhouse gas emissions 30 percent by 2020 and 50 percent by 2050. In addition, it stipulates that 35 percent of Mexico’s energy will come from renewable sources by 2024 and that all government agencies will be required to use green energy sources.
The law also calls for the creation of a permit-trading scheme for greenhouse gas emissions. On Twitter, Calderon said the law is part of Mexico’s efforts to become “an international leader in environmental protection.”
The U.S. Energy Information Administration lists Mexico as the world’s 12th-biggest carbon emitter, producing 443.61 million metric tons of carbon dioxide emissions annually.
Article appearing courtesy Yale Environment 360.
Cities worldwide are increasingly aware of the need to prepare for the effects of climate change — including increased variability in temperatures and extreme weather events — but are often hampered by limited financial resources and political commitment, according to a new survey by the Massachusetts Institute of Technology. (more…)
Rising water temperatures and a reduction in river flows have caused declining production at some thermoelectric power plants in the U.S. and Europe, a trend that will likely continue for decades to come as the planet warms, according to a new study.
Japanese officials say they may have to scrap long-term targets for carbon emissions reductions as a consequence of moving away from nuclear power in the aftermath of last year’s Fukushima disaster.
According to the Japan Times, government officials this week conceded that goals to cut carbon (more…)
For the first time in at least 800,000 years, atmospheric concentrations of carbon dioxide have crossed the threshold of 400 parts per million (ppm), with stations across the Arctic recording these record levels, the Associated Press reports.
Global concentrations have hit 395 ppm, but in (more…)
Global carbon dioxide emissions reached record levels in 2011, driven largely by a 9.3-percent increase in Chinese emissions, according to a new report by the International Energy Agency (IEA). According to preliminary estimates, worldwide carbon emissions climbed to 31.6 gigatonnes in 2011, a 3.2-percent increase from 2010. (more…)
There are several ways to remove CO2 from a stack gas. None have reached a commercial basis yet due to the expense of the processing. The current method of removing the greenhouse gas carbon dioxide (CO2) from the flues of coal-fired power plants uses so much energy that no one bothers to use it. So says Roger Aines, principal investigator for a team that (more…)
The planet’s seagrass meadows store more than twice as much carbon per square kilometer as forests, demonstrating that coastal vegetation can play an important role in mitigating climate change, a new study says.