Instead of building waste-free wooden houses, we insulate them with styrofoam, which besides mildew offers minimal effects, and when soiled with plaster is almost impossible to dispose of. We burn carbon, gas, and oil to heat and cool buildings, when a few photovoltaic batteries can deliver more power to a wooden building than it needs. It is now the ideal time to start thinking differently. As you can see from Dr. Thoma's example, sometimes one man's perseverance is sufficient to initiate small, big changes in the world.
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