Climate change, Padulosi said, can affect agriculture because of the reduction of the availability of water, rising global temperatures, the flooding of agricultural areas, or an increase in pests.

By the year 2050, demand for food will grow 65 percent, while the global population will reach nine billion.

The Intergovernmental Panel on Climate Change (IPCC) warns that net agricultural yields could shrink by between 0.2 and two percent per decade, as demand grows 14 percent per decade.

Gary Gardner, a researcher with the Washington-based Worldwatch Institute, said the measures to be adopted must take peasant farmers into account, because a failure to do so would not make sense.

“Major efforts are needed for conservation of resources and becoming more efficient in their use. But huge gains in efficiency are available for producers, processors, business and consumers,” he told IPS.

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Gardner is preparing a chapter on hidden threats to sustainability for Worldwatch Institute’s State of the World 2015 report.

The Food and Agriculture Organisation (FAO) reports that 11 percent of the world’s land is highly degraded and 25 percent is moderately degraded.

The U.N. agency estimates that global emissions from agriculture, forestry and other land uses have surpassed 10 billion tons of carbon dioxide.

At the same time, some two billion tons of CO2 per year were removed from the atmosphere as a result of carbon sequestration in forest sinks.
FAO projects that CO2 emissions could increase 30 percent by 2050.

Agriculture provides ecosystem services such as food, fiber, forage, bioenergy and natural habitats, while it benefits from them at the same time – another reason to promote sustainable practices.

“The services have the potential of growing production and sustainability. Practices like improving genetics of crops, integrated management of plagues and nutrients, development of precision agriculture and the management of soil and water can be optimised,” Power said.

For his part, Gardner calls for preserving the extension and quality of farmland and faster progress in promoting the conservation of farming techniques, as well as incentives to remove marginal land from cultivation.

Edited by Estrella Gutiérrez/Translated by Stephanie Wildes

© 2019 Inter Press Service

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