Two of the most common questions, readers ask, especially today with the concern about genetically modified organisms, are what seeds are best and what is the difference between hybrid seeds, open-pollinated and heritage seed. The answers and more in this Friday's tribune
Saturday, February 13, 2016
Wednesday, February 3, 2016
Build Soil to Combat Climate Change
Concerned about climate change then Build Soil!
"Improving soil" doesn't have quite the same ring as, say, pumping sulphur into the air to block out the sun. Yet soil is known to be highly effective at storing carbon, because the Earth has been doing it for millions of years. Just the first meter of soil contains 1,500 gigatons of organic carbon, or three times as much carbon as there is in the atmosphere. If we could restore more carbon to the world's soil—it's lost 50% to 70% of its carbon content since we started land cultivation—we could put a huge dent in the climate change problem, say researchers and campaigners."
"Improving soil" doesn't have quite the same ring as, say, pumping sulphur into the air to block out the sun. Yet soil is known to be highly effective at storing carbon, because the Earth has been doing it for millions of years. Just the first meter of soil contains 1,500 gigatons of organic carbon, or three times as much carbon as there is in the atmosphere. If we could restore more carbon to the world's soil—it's lost 50% to 70% of its carbon content since we started land cultivation—we could put a huge dent in the climate change problem, say researchers and campaigners."
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