greenhouse gases

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I’m not sure if this is science at its best or a bit creepy: Toyota has created two new species of flower to offset the carbon emissions at its Prius factory in Japan. And that’s not even counting the grass. Or the fact that they planted the flowers in a sunset pattern.

According to Popular Science:

  • The Toyota version of cherry sage absorbs greenhouse gases through its leaves
  • The Toyota version of gardenia acts as a humidifier to cool the factory grounds and reduce the need for a/c
  • The Toyota grass, which used to need mowing three times a year, now only needs a trim once a year

Is Toyota harnessing the power of science for good or evil? Grow your opinions in the comments.

The Society of Automobile Engineers, better known as SAE International, has issued a new challenge to college students studying engineering: build a better, cleaner snowmobile.

The rules for the competition have been recently posted, and the goal is to get better fuel economy. Entries can run on biodiesel, ethanol, or, in the zero-emissions category, on electricity. The snowmobiles will be rated in categories like emissions, noise, and acceleration.The idea is to make internal combustion snowmobiles suitable for use in fragile natural areas, like in national parks. The quieter and cleaner a machine is, the less it will disturb both plant and animal life.

The goal for the zero-emissions category is even more specific: make a snowmobile that won’t skew the research being done at Summit Station in Greenland. Scientists there are working to understand the absorption of atmospheric gases by the ice cap, and any emissions from fossil fuels burned at the site can mess up the results of their measurements.

Can we expect to see any of these in the local Sno-Cat dealership? Probably. The SAE seems to expect that the biodiesel and ethanol versions would be pretty cheap to build for retail sale, and that they’d do pretty well on the showroom floor. Hybrids aren’t allowed in this competition for just that reason — the system is too expensive to be worth it for manufacturers or buyers at this point.

Under the proposed cap-and-trade plan, manufacturers would have to pay for their greenhouse gas emissions, including carbon dioxide. For many companies, including auto makers, this is a money issue as much as (or maybe more than) an environmental one.

NSF International and Trucost Plc analyzed the greenhouse gas emissions of 230 businesses in a variety of sectors, including six in the automotive business: Ford, GM, Harley-Davidson, Goodyear, Johnson Controls, and Genuine Parts. Genuine Parts, an umbrella company that includes NAPA, had the lowest carbon emissions per million dollars of revenue. The other five companies all scored in the same neighborhood, as far as CO2 per million dollars goes.

The report puts CO2 emissions into financial perspective for the industry: if you don’t clean up your act sooner rather than later, it is going to cost you money. Not only that, but the report points out that a “dirty” company competing against a “clean” one will lose the public relations battle, too. Another hit to the ol’ pocketbook for spewing greenhouse gases into the air.

Overall, the average auto or parts manufacturer emits 1.3 million metric tons of green house gases each year. Over 90% of those emissions come from the supply chain, not from the manufacture of the product itself. Large companies are going to need to put the pressure on their suppliers to clean up, too. Otherwise, the company that builds the car is going to get dinged for the carbon score of the parts that go into it.

It’s all very complicated, and the report includes a lot of charts. But it boils down to one message for corporations: clean up your act, or you’ll end up paying six ways to Sunday.