Contrary to common belief, Brazil’s policy of protecting portions of the Amazonian forest from development is capable of buffering the Amazon from climate change, according to a new study led by Michigan State University researchers.
The study, to be published in the Proceedings of the National Academy of Sciences, contends state and federal governments in Brazil have created a sustainable core of protected areas within the Amazon. And even if the remaining Brazilian Amazon is deforested, the climate will not significantly change – thereby protecting the Amazon’s ecosystems.
Interior Secretary Ken Salazar announced measures on Monday to hasten the development of solar energy on Western public lands.
Mr. Salazar, appearing in Las Vegas with Harry Reid, the Senate Majority Leader, said that 670,000 acres of lands managed by the Bureau of Land Management (an agency within the Department of the Interior) would be studied to determine whether they could support large solar power arrays.
The markets today seem to be largely shrugging off House passage last week of groundbreaking climate and energy legislation as concerns over the health of the broader U.S. economy and the sentencing of disgraced fund manager Bernard Madoff are grabbing investors’ attention.
Stocks were trading slightly up at the opening bell but leveled as analysts were predicting light or flat trading, although major indexes later bounced back a bit. After bouncing up and down, the benchmark Dow Jones Industrial Average was trending up slightly, rising by about 80 points, or less than 1 percent, at press time. The S&P 500 rose by 7 points.
Renewable energy and clean technology stocks seemed to be mirroring that performance today — despite bullish provisions in the House bill calling for $190 billion in new investments in alternative energy and energy efficiency and a mandate that utilities draw 20 percent of their power from renewable sources by 2020.
The United States set the bar too low and offered the world a poor example when it passed its climate change bill on Friday, according to a senior Chinese climate change official.
Li Gao, a division director with the Climate Change Department of the National Development and Reform Commission, said the US did not live up to international expectations when it approved the document.
Li said the bill’s mid-term carbon emission target would probably be seized upon as the new standard by developed countries in the battle against global warming.
On Monday, the European Commission, the European Union executive, said that it had reached a voluntary agreement with some of the biggest names in the electronics industry to introduce a common charger for cell phones that fits all models.
Chargers had become a problem because “almost every household has a collection of chargers that have become superfluous over time” and because “old chargers currently generate several thousands of tons of waste a year,” said Guenther Verheugen, the E.U. commissioner for enterprise and industry.
In revisiting a chemical reaction that’s been in the literature for several decades and adding a new wrinkle of their own, researchers with Berkeley Lab and the University of California (UC) Berkeley have discovered a mild and relatively inexpensive procedure for removing oxygen from biomass. This procedure, if it can be effectively industrialized, could allow many of today’s petrochemical products, including plastics, to instead be made from biomass.
President Obama said Monday that light bulbs will have to meet tougher efficiency standards in order to slash energy bills and greenhouse gas emissions.
“¦ “I know light bulbs may not seem sexy,” Mr. Obama said, “but this simple action holds enormous promise because 7 percent of all the energy consumed in America is used to light our homes and our businesses.”
Mr. Obama told reporters that the tougher standards for fluorescent and incandescent light bulbs will help consumers save $4 billion a year on energy bills between 2012 and 2042. The standards will also conserve enough electricity to power every home in America for 10 months, reduce carbon emissions equal to the amount produced by 166 million cars each year and eliminate the need for as many as 14 coal-fired power plants, he added.
Particulate pollution thought to be holding climate change in check by reflecting sunlight instead enhances warming when combined with airborne soot, a new study has found.
Like a black car on a bright summer day, soot absorbs solar energy. Recent atmospheric models have ranked soot, also called black carbon, second only to carbon dioxide in potential for atmospheric warming. But particles, or aerosols, such as soot mix with other chemicals in the atmosphere, complicating estimates of their role in changing climate.
“Until now, scientists have had to assume how soot is mixed with other chemical species in individual particles and estimate how that ultimately impacts their warming potential,” said Kimberly Prather, professor in the Department of Chemistry and Biochemistry and the Scripps Institution of Oceanography at the University of California, San Diego. “Our measurements show that soot is most commonly mixed with other chemicals such as sulfate and this mixing happens very quickly in the atmosphere. These are the first direct measurements of the optical properties of atmospheric soot and allow us to better understand the role of soot in climate change.”
An international team of scientists warns that accelerating losses of seagrasses across the globe threaten the immediate health and long-term sustainability of coastal ecosystems. The team has compiled and analyzed the first comprehensive global assessment of seagrass observations and found that 58 percent of world’s seagrass meadows are currently declining.
The assessment, published in the Proceedings of the National Academy of Sciences, shows an acceleration of annual seagrass loss from less than 1 percent per year before 1940 to 7 percent per year since 1990. Based on more than 215 studies and 1,800 observations dating back to 1879, the assessment shows that seagrasses are disappearing at rates similar to coral reefs and tropical rainforests.
Developing countries like Rwanda need to conserve as much water as it can sustain so as to counteract the problems of global warming and maintain its agriculture at a level commensurate to the needs of the whole population.
Rwanda being a hilly, makes it possible to collect water from the steep landscape, conserve it and used for agriculture and domestic purposes.
However, during wet periods, we tend to neglect running water. There is now need to think beyond traditional level of depending on ordinary or naturally made items or essentials.