A study by Robert Goodland and Jeff Anhang of the World Bank looked at the relative importance of anthropogenic emissions of greenhouse gasses from oil, natural gas, and coal compared to the life cycle and supply chain emissions of domesticated animals raised for food. They conclude that greenhouse gases (GHGs) from the lifecycle and supply chain of animals raised for food account for 51% of annual emissions caused by humans and should be given higher priority in global efforts to fight climate change.

While livestock are already known to contribute to GHG emissions, their levels have been underestimated or simply overlooked, former and current World Bank environmental experts Robert Goodland and Jeff Anhang.

Interfering with the Earth’s climate system to counteract global warming is a controversial concept. But in an interview with Yale Environment 360, climate scientist Ken Caldeira talks about why he believes the world needs to better understand which geoengineering schemes might work and which are fantasy — or worse.

Atmospheric scientist Ken Caldeira first became known for his groundbreaking work on ocean acidification, a phrase originally coined as a headline for one of his papers. Of late, however, Caldeira’s research has led him into the controversial area of geoengineering — the large-scale, deliberate manipulation of the Earth’s climate system.

Many scientists have shied away from the subject because they feel it is a wrongheaded and dangerous path to pursue. But Caldeira — who heads a research lab at the Carnegie Institution for Science’s Department of Global Ecology at Stanford University — has not been so dismissive, in part because his climate modeling has demonstrated that some geoengineering schemes may indeed help reduce the risk of climate change. In fact, few scientists have thought harder about the moral, political, and environmental implications of geoengineering.
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Rapid population growth in the developing world does not significantly contribute to rising greenhouse gas emissions and focusing on the population explosion in poor countries diverts attention from the far more serious issue of over-consumption in rich countries, according to a new study.

The study, conducted by the International Institute for Environment and Development, analyzed population growth and CO2 emissions from 1980 to 2005 and concluded that rising populations in sub-Saharan Africa and other poor regions have had a negligible impact on global warming.

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Several interesting CleanTechies articles on LEED have covered the topic from different angles — this one will add a new perspective by giving  a commercial example (and make a strong case for going green).

What is LEED?

LEED stands for Leadership in Energy and Environmental Design. The certification is given based on an exam facilitated by the Green Building Certification Institute on behalf of the US Green Building Council (USGBC). Multiple structures and projects are eligible for LEED certification and each is judged based on a set of criteria. LEED ratings are available for New Construction, Existing Buildings, Commercial Interiors, Core and Shell (total building minus interior), Homes, Neighborhood Development, Schools and Retail. Points are given in six categories including: Sustainable Sites, Water Efficiency, Energy & Atmosphere, Materials & Resources, Indoor Environmental Quality and Innovation & Design Process. Based on the score a structure receives, it will receive a label which allows an easy understanding for just how many of the LEED features the project incorporates.

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NPR’s Morning Edition recently aired this story, a variation on a theme that I have written about in the past on CleanTechies and in scholarly work: green backlash against renewable power. The Morning Edition piece focused on the land use implications of renewables, noting that it takes a lot more land to generate a terawatt of solar, wind or biofueled electricity than of coal or natural gas power.

True enough. But, for me, it all comes down to the threshold question: do you believe the worst-case climate scenarios? If your answer is yes, and you have the courage of those convictions, then you realize — as I have — that we have no choice, and no time to dawdle. People who answer that question affirmatively know that the paradigm shifts in energy production and consumption that are necessary if we are to have any chance of righting our climatological ship will face knee-jerk opposition and demagoguery from opponents (s, e.g., the spring time bloodbath over the Waxman-Markey bill). A movement that remains — however gallingly — on such tenuous footing cannot afford to endure the additional obstacle of in-fighting over policy nuances. To twist a familiar and over-used metaphor:
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Facing the prospect that the federal government may soon begin regulating greenhouse gas emissions, the U.S. Chamber of Commerce is proposing a public hearing in which the chamber and allied scientists question whether human-caused global warming is real.

William Kovacs, the chamber’s senior vice-president for environment, technology, and regulatory affairs, is asking the U.S. Environmental Protection Agency (EPA) to hold the rare public hearing, complete with witnesses, cross-examinations, and a judge who would rule whether man is indeed warming the planet.

Kovacs likened the hearing to “the Scopes monkey trial of the 21st century,” referring to the famed 1925 court case in which a Tennessee teacher was illegally accused of teaching evolution. “It would be the science of climate change on trial,” said Kovacs, adding that if the EPA refuses to hold a hearing, the chamber will file a lawsuit in federal court challenging the notion of man-made global warming.

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Singapore is a bustling city state at the southern tip of peninsular Malaysia.  Independent from Malaysia since 1965, it has a dense population of 4.7 million people crammed into 269 sq. miles (697 sq. km)—  that’s roughly 3.5x the size of Washington D.C.

In spite of its lacking land mass, the tiny country is a major economic hub in Southeast Asia and boasts one of the best standards of living of any Asian city, and even rivals many metropolis overseas.

It’s a city that is well planned, tightly regulated, visually attractive, and thankfully lacking the woeful pollution that afflict other centers like Hong Kong and Shanghai.

Waste and the City

All the economic activity and large population of course is not without its downside: waste.  In 2008 the total volume of solid waste had reached 5.97 million tons.  Luckily, according to government figures, roughly 2.24 million tons (approx. 56%) of this was recycled.  That still left a lot left to deal with.

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Biofuels – made from algae and non-food plants – are emerging as a potentially viable alternative to conventional jet fuels. Although big challenges remain, the reductions in greenhouse gas emissions could be major.

Earlier this year, a Continental jet accelerated down the runway at George Bush Intercontinental Airport in Houston. Nothing out of the ordinary for Capt. Rich Jankowski, who countless times in his 38-year career had eased such two-engine Boeing 737-800s into the sky. Except on this experimental flight, one of the engines Jankowski relied on was burning fuel derived from microscopic algae to push the 45-ton aircraft into the air and keep it aloft — a first in aviation history.

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The goal is to enable power generation from low-temperature geothermal resources at an economical cost. In addition to being a clean energy source without any greenhouse gas emissions, geothermal is also a steady and dependable source of power.

A new method for capturing significantly more heat from low-temperature geothermal resources holds promise for generating virtually pollution-free electrical energy. Scientists at the Department of Energy’s Pacific Northwest National Laboratory (PNNL) are testing a new innovative approach to safely and economically extract and convert heat from vast untapped geothermal resources.

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As media sponsor of the 5th Germany California Solar Day that took place in San Francisco last month, CleanTechies is pleased to announce another exciting green tech event organized by the German American Chamber of Commerce:

Mobility 2030: Transportation Technologies & Lifestyles of the Future

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