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Call for 'cool farming'

PUBLISHED: 17:12 09 January 2008 | UPDATED: 08:18 28 March 2014

JANUARY 2008: Agriculture is one of the largest sources of  greenhouse gas emissions and urgent changes need to be made if it is to be  changed from a key contributor to climate change to a carbon sink,  according to a new report published by Greenpeace.
    

'Cool Farming: Climate impacts of  agriculture and mitigation potential', written for Greenpeace by  Professor Pete Smith from University of Aberdeen, a lead author on the latest Intergovernmental Panel on Climate Change report, is the first report to detail both the direct and indirect effects farming has on climate change.

"As  a key contributor to climate change, the environmental impact of  industrial farming has reached critical levels," said Jan van Aken,  Greenpeace International Sustainable Agriculture Campaigner.  "Governments must support a farming future that works with nature, not
against it."

The report describes how energy- and  chemical-intensive farming has led to increased levels of greenhouse  gas emissions, primarily as a result of the overuse of fertilisers,  land clearance, soil degradation, and intensive animal farming.

The  total global contribution of agriculture to climate change, including  deforestation for farmland and other land use changes, is estimated to  be equivalent to between 8.5 -16.5 billion tonnes of carbon dioxide or  between 17- 32% of all human-induced greenhouse gas emissions.

Fertiliser overuse is responsible for the highest single share of agriculture's  direct greenhouse gas emissions, currently equal to some 2.1 billion  tonnes of CO2 annually. Excess fertiliser results in the emission of  nitrous oxide (N2O), which is some 300 times more potent than carbon  dioxide in changing the climate.

"The saturation bombing of  farmland with fertilisers can and must be stopped. Farmers need to be  encouraged to use less fertiliser with more precision, and given  assistance to convert to modern, ecological farming systems," stressed  Jan van Aken. "Governments must stop subsidising environmentally  destructive practices in agriculture."

Cool Farming details a  variety of practical solutions which can reduce climate change and that  are easy to implement, including reducing overuse of fertilisers,  protecting the soil, improving rice production and cutting demand for  meat, especially in developed countries, says the report

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