I live in a hundred year-old house where most everything is original: the windows (drafty), the walls (uninsulated), the furnace (burns oil). I need only look at my heating bill every month to deduce what the Commission for Environmental Cooperation has determined through a two-year study—homes and office buildings in North America account for over one-third of the continent's greenhouse gas emissions. They are terribly inefficient.
I wholeheartedly agree with GH (first poster)! Why wouldn't you make improvements yourself? You would obviously be the beneficiary even if you rent. Don't tell me it costs too much, I know better! I've bought storm doors and door seals and window sealing stuff at yard sales for next to nothing and done the work myself. It's called being poor and learn by doing.
Though the existence of global warming is indisputable at this point, the debate over the best plan of attack to solve the problem and reduce our dependency on petroleum fuels is far from settled. The latest example: Two new studies released this week indicate that that biofuels such as ethanol may accelerate rather than alleviate global warming.
Good article! Obviously, harvesting native plants (not just switch grass!) for use in production of cellulosic ethanol is the way to go. Native plants growing on nonagricultural land require no cultivation, no fertilizer, and no irrigation. We used to call them weeds; undesirable, pernicious plants. Turns out they can be quite valuable if we are clever enough to extract their energy. A undesirable weed was accidentally imported into the western US early on. It was the Russian thistle, commonly known as a tumbleweed. In thrived in the arid grasslands crowding out native plants and grasses. In the Fall, the main root breaks off and this great round ball of a plant rolls across the land spreading its seed. Then it piles up in dense masses against fences and other obstructions. When I was a kid, I burned a lot of those tumbleweed piles and was amazed at the burning oil that I could see dripping out of the seemingly dry plants in the fire. The fires produced an oily black smoke too. There is a lot of energy in these plants and it would be cheap and easy to harvest.
"Cellulosic ethanol technology is a lot closer to reality than a lot of articles would have you think," said Jacques Beaudry-Losique, manager of the Department of Energy's Biomass Program this morning at the American Association for the Advancement of Science meeting. After some well-publicized studies stated that corn-based biofuels might exacerbate CO2 damage to the environment, focus has shifted to these so-called "second generation" biofuels that use non-food crops such as switchgrass, wood chips or crop residues (e.g. all the parts of the corn plant that are currently wasted after harvest--the stalk, leaves and "cob").
The great appeal of cellulosic ethanol is that it can be produced from non-agricultural plants on scrub lands not suitable for farming. These plants do not require cultivation or fertilizer. Cellulosic ethanol can also be produced from wood waste. Here in central BC, our pine forests have been decimated by a pine beetle epidemic. We must remove the dead trees from the forests as soon as possible to prevent fires and to replant new trees. We have found many innovative uses for this dead wood. Cellulosic ethanol would provide us with another good use for our wood waste.
Move over cheddar. Its time for something hairier…er, healthier. Researchers in Nepal and Canada are reporting [PDF] that yak cheese has higher levels of several healthy fatty acids than the stuff derived from dairy cattle.
Remember when the latest craze was ostrich farming? We don't hear too much about that now so it's time to start promoting yak farming and selling yak cheese. Yak are, after all, are very much like hairy cattle. I think they would do very nicely in the western mountains of North America. The purpose of this exercise is so that we can enjoy the benefits of yak cheese and buy locally produced, environmentally friendly produce.
In the international alliance to fight climate change, the United States is considered the sullen loner. But in the seven years since we rejected Kyoto, changes have begun. Not at the federal level, however. Its the locals who are making it happen.
I found it an excellent article and I hope we will see more like it. I was particularly impressed with Chicago's cogeneration scheme. They use waste heat to generate more electricity. In my small northern town, we use waste heat from a pulp mill to heat an industrial-size greenhouse where we grow new tree seedlings to replant our forests. Cogeneration means using waste heat for something else and it is obviously a means of reducing our fossil fuel consumption.
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