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Have we moved into 'the human epoch' ?

Have we moved into ‘the human epoch’ ?

by Lewis, 1 May, 2016, 4 comments

As a species, we humans have only been present on the Earth for a ‘blink of the eye’ in geological terms. The Earth is approximately some 4.6 billion years old. Geologists have divided up these years into a number of geological periods or epochs - from the Pre-cambrian (from the formation of the earth until about 540 million years ago) to the most recent - the Holocene, which started at the end of the last Ice Age - about 12,000 years ago. Modern Humans emerged out of Africa probably some 200,000 years ago, and since that time they have increased massively in number. At the end of the C18th , there were probably about one billion people; now there are over seven billion. We have changed the Earth in many ways. Read more...

Biochar at the Centre for Alternative Technology: business opportunity for small woodland owners or climate change solution

Biochar at the Centre for Alternative Technology: business opportunity for small woodland owners or climate change solution

by Chris Colley, 31 March, 2011, 12 comments

Biochar may be used to mitigate climate change brought on by global warming, by removing carbon dioxide from the atmosphere and locking the carbon into the soil, if James Lovelock (originator of the seductive Gaia hypothesis) is to be believed. Others say the numbers just don’t work. Biochar is also put forward as a very effective soil improver, which can reduce fertiliser use, reduce pollution, increase crop yields, and as an approach to agriculture may be traced back to the terras preta (black soils) of the Amazonian rainforest. Read more...

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