More than 235 U.S. scientists, including some of the nation’s most prominent climate researchers, are recommending new procedures for the U.N.’s Intergovernmental Panel on Climate Change (IPCC), including acknowledging errors on the organization’s website as soon as they are known.

In an open letter, the scientists, some of whom have contributed to IPCC reports, defend the quality and transparency of the panel’s research. But they suggest the IPCC should become more responsive in acknowledging mistakes and should publish an erratum online that corrects any errors discovered after publication. (more…)

According to the United Nations, an estimated 40 percent of the global population, or close to 2.6 billion million people do not have access to a toilet of any sort, even a pit latrine.

This has created a public health crisis in developing countries, both in terms of contaminated drinking water and poor sanitation techniques. More than one million children mostly under the age of five die each year from diarrhea resulting from this lack of sanitary conditions. While the technology exists to solve this problem, it is expensive and sometimes hard to install.

But Swedish architect and entrepreneur, Anders Wilhelmson is hoping to tackle the issue with his invention: a safe, affordable, biodegradable plastic bag called the Peepoo that can be used as a single-use toilet. (more…)

“Whiskey is for drinking; water is for fighting over.” Often attributed to Mark Twain, whoever said that seemed to have quite a bit of foresight, something the mainstream cleantech community is only recently warming up to.

The fights over water use facing utility scale solar thermal projects in the desert Southwest may have a lot to do with opening the eyes of the clean-tech community, but the sector’s challenges and opportunities are much broader than that, as scores of Californians, Middle Easterners, and Australians will attest.  So why, with the problems so immediate and demand remaining strong in the $58 billion annual market for water technologies, has water investment as a percentage of venture investment declined since 2005?

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More than one-third of the carbon dioxide emissions associated with consumer goods used in developed nations is actually emitted in other nations where the products are made, according to a new study.

In the United States, about 2.5 tons of carbon produced per person annually — or about 11 percent of U.S. per capita emissions — are emitted elsewhere, researchers at the Carnegie Institution for Science say.

In Europe, it’s about four tons of carbon per person. In fact, in smaller European nations like Switzerland, the emissions associated with products manufactured outside the borders exceed the actual emissions produced at home. (more…)

Two billion people worldwide do their cooking on open fires, producing sooty pollution that shortens millions of lives and exacerbates global warming. If widely adopted, a new generation of inexpensive, durable cook stoves could go a long way toward alleviating this problem.

With a single, concerted initiative, says Lakshman Guruswami, the world could save millions of people in poor nations from respiratory ailments and early death, while dealing a big blow to global warming — and all at a surprisingly small cost.

“If we could supply cheap, clean-burning cook stoves to the large portion of the world that burns biomass,” says Guruswami, a Sri Lankan-born professor of international law at the University of Colorado, “we could address a significant international public health problem, and at the same stroke cut a major source of warming.”

Sooty, indoor air pollution from open wood or other biomass fires has long been linked to health problems and deaths. More recently, scientists have been surprised to learn that black carbon — not only from biomass fires but from dirty diesel engines and other sources — is a far larger contributor to global warming than previously suspected: The dark particles absorb and retain heat close to the Earth’s surface that might otherwise be reflected. (more…)

The Unstoppable…Solar Lobby?! A skirmish this week in Arizona revealed that the solar industry, while still adolescent, is developing some political brawn. A bill in the state legislature proposed expanding the definition of “renewable” to include nuclear power, a move that would have allowed the state’s lone nuclear plant to fulfill Arizona’s mandate to receive 15% of its electricity from renewables. Solar companies howled, including Suntech Power Holdings, which threatened to cancel its first U.S. factory in Arizona. Days later, the proposal was retired.

Wal-mart to Suppliers: Go Green or Else Wal-mart announced a goal of cutting 20 million metric tons of greenhouse gas emissions from its supply chain by the end of 2015. By using its unparalleled purchasing leverage, Walmart intends to force greener behavior on the part of its vendors, like it or not. (more…)

U.S. Energy Secretary Steven Chu said on Friday that the United States needs to come up with a better system for storing or disposing of radioactive nuclear waste than a planned repository near Las Vegas.

“The president has made it very clear that we are going to go beyond Yucca mountain. You should go beyond Yucca mountain,” Chu said. “But instead of wringing my hands, let’s go forward and do something better.”

The Obama administration, in January, announced it was stopping the license application for a long-planned multi-billion dollar nuclear waste storage site at Yucca Mountain near Las Vegas, which is opposed by environmental groups. (more…)

As the climate crisis accelerates, farmers are placed in the ever more precarious position of growing food for an increasing population in the face of increasingly bizarre weather patterns. Weather patterns are shifting due to the increasing amount of energy trapped in our atmosphere by greenhouse gases.

And yet, farming offers the fastest way to slowthe  climate crisis. This is because farmers manage photosynthesis, the biological process within green plants that pulls carbon dioxide out of the atmosphere and stores it in a stable, useful form: organic carbon. Organic carbon is the chemical basis of leaves, shoots, roots, fungi and all the other living things that make up healthy soils.

Good farmers can accelerate this process and pull huge amounts of carbon dioxide from the air into soil organic matter. Increased soil organic carbon can help us manage dry and wet years better by storing water. And the practices that build soil organic carbon require more diverse cropping systems, making farmers (and us) less reliant in any one crop. (more…)

Although they have grown up during an era when global warming has emerged as a major issue, Americans between the ages of 18 and 34 are relatively apathetic about the threat, according to a new survey.

And even when they do think about it, young Americans are just as divided as older Americans about whether global warming is real, according to results of the survey conducted by the Yale Project on Climate Change and the George Mason University Center for Climate Change Communication.

Adults under 35 are significantly less likely than older Americans to say they have thought about global warming, with 22 percent saying they have never thought about the issue. (more…)

Wind turbine technology has become a fully commercial venture, but the recent rapid growth of the wind industry has strained its supply chain to meet demand in a timely manner. Furthermore, unexpected component failures, especially electronic controls, gearboxes, generators, and rotor blades, have driven up operations and maintenance costs.

During the course of the research for a new report just published by Wind Energy Update, it ultimately became clear that reliable and verifiable data on wind industry operations and maintenance cost trends is quite rare. In fact, there are no current widely available data sets illustrating these wind industry costs.

Proprietary research, reviews of scarce secondary sources and anecdotal evidence obtained through confidential interviews with wind industry owners and operators and component suppliers suggest that operations and maintenance expenses are double or even triple what was originally projected, particularly with the latest class of multi-megawatt machines now permeating the global wind market. (more…)