David Biello on the daunting physical logistics of scaling up green energy:
“It’s not just a matter of making the necessary equipment, it’s also a question of finding the space for it. A coal-fired power plant produces 100 to 1,000 watts per square meter, depending on the type of coal it burns and how that coal is mined. A typical photovoltaic system for turning sunlight into electricity produces just 9 watts per square meter, and wind provides only 1.5 watts per square meter.
The challenge is worse for smaller countries: the United Kingdom would have to cover its entire landmass with wind turbines to provide enough electricity for the current Briton’s average consumption — roughly 200 kilowatt-hours per day, according to MacKay, the Cambridge expert.”
“The US military is responsible for the most egregious and widespread pollution of the planet, yet this information and accompanying documentation goes almost entirely unreported. In spite of the evidence, the environmental impact of the US military goes largely unaddressed by environmental organizations and was not the focus of any discussions or proposed restrictions at the recent UN Climate Change Conference in Copenhagen. This impact includes uninhibited use of fossil fuels, massive creation of greenhouse gases, and extensive release of radioactive and chemical contaminants into the air, water, and soil.
The extensive global operations of the US military (wars, interventions, and secret operations on over one thousand bases around the world and six thousand facilities in the United States) are not counted against US greenhouse gas limits.…
As it stands, the Department of Defense is the largest polluter in the world, producing more hazardous waste than the five largest US chemical companies combined. Depleted uranium, petroleum, oil, pesticides, defoliant agents such as Agent Orange, and lead, along with vast amounts of radiation from weaponry produced, tested, and used, are just some of the pollutants with which the US military is contaminating the environment.”
And it makes me think a lot of sustainable designers may be fighting the wrong war.