Economic history in 10 minutes

Economic history compressed into one sentence: "As societies have grown more complex, larger, more far-flung and diverse, the tribe-based gift economy has shrunk in importance, while the trade economy has grown to dominate nearly every aspect of people’s lives, and has expanded in scope to encompass the entire planet." As society dramatically simplifies itself in the wake of fossil fuel depletion, will we revert to some form of gift economy? Or will we catch and steady ourselves on some intermediate rung on the ladder of economic development?

The Meaning of Wood Heating: In their own words

Most of the participants in this case study reported that wood energy provides a “deeper experience” that enhances quality of life and possibilities for learning. Using wood energy results in a number of personal benefits that offer some insight into requirements for generating wider citizen interest in energy sustainability.

Solar greenhouses, Chinese-style

In Europe and North America, eating fresh perishable produce out of season usually means hauling it in refrigerated containers from regions where it’s in season, or growing it locally in heated greenhouses…Although these greenhouses boast extremely high yields, the amount of fuel needed to heat them generally far exceeds the amount that would be needed to haul an equivalent amount of produce from a region where it’s in season.

Stunner: Nature’s review of 20 years of field studies finds soils emitting more C02 as planet warms

One of the single greatest concerns of climate scientists is that human-caused warming will cause amplifying feedbacks in the carbon-cycle. Such positive feedbacks, whereby an initial warming releases carbon into the air that causes more warming, would increase both the speed and scale of climate change, greatly complicating both mitigation and adaptation.