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Filmmaker John Liu has documented the World Bank's $500 million loess plateau watershed rehabilitation project since it began in 1995. He has made at least two compelling films about the project, including a 22-minute version was shown at the recent Copenhagen climate conference, and a more detailed 52-minute version.

In the Sacramento Delta of California, a freshwater tidal marsh thick with tules and other marsh vegetation formed carbon-rich peat soils 60 feet deep in places. In the 1870s, farmers began to build dikes, drain the marshes, burn the tules, and farm the peat soils.

Allan Savory gave this talk in Ireland in November 2009. About 58 minutes.

It is often said that you can't unscramble an egg. An egg has a wholeness or integrity, a poised arrangement of membranes and layers. You cannot reverse the breaking, mixing, and cooking, even with the most advanced technology and equipment. But a hen can. Feed her a scrambled egg or two, and she can lay a new, whole egg. It may not be instant, but expensive technology is not required. If the egg is fertile, it can become a new hen, who can unscramble more eggs, and so on. It's important to remember the relationship here, and who has the power. The hen wants to eat it, and produce a new egg, for reasons that are hers, not ours. Like all the biosphere's organisms, she is self-motivated. Trying to force her may cause problems for both her and us. If we want the egg unscrambled, we invite her. We've got a scrambled egg situation on a global scale: biodiversity loss, extensive land degradation, water shortages, acidifying oceans, and too much heat-trapping carbon in the atmosphere. But we've framed it in such a way that the hen isn't even in the picture. Of all these large problems, it was perhaps inevitable that carbon in the atmosphere took center stage in the 1970s and after. The data about rising carbon dioxide in the atmosphere were clear. Physical sciences were dominant in climate questions, and the scope and variability of the biological carbon cycle were only beginning to emerge.