Reforestation hopes threaten global food security, Oxfam warns
The Guardian 3 Aug 2021
Governments and businesses hoping to plant trees and restore forests in order to reach net-zero emissions must sharply limit such efforts to avoid driving up food prices in the developing world, the charity Oxfam has warned.
Planting trees has been mooted as one of the key ways of tackling the climate crisis, but the amount of land needed for such forests would be vast, and planting even a fraction of the area needed to offset global greenhouse gas emissions would encroach on the land needed for crops to feed a growing population, according to a report entitled Tightening the net: Net zero climate targets implications for land and food equity.
At least 1.6bn hectares – an area five times the size of India, equivalent to all the land now farmed on the planet – would be required to reach net zero for the planet by 2050 via tree-planting alone. While no one is suggesting planting trees to that extent, the report’s authors said it gave an idea of the scale of planting required, and how limited offsetting should be if food price rises are to be avoided.
Nafkote Dabi, climate policy lead at Oxfam and co-author of the report, explained: “It is difficult to tell how much land would be required, as governments have not been transparent about how they plan to meet their net-zero commitments. But many countries and companies are talking about afforestation and reforestation, and the first question is: where is this land going to come from?”
Food prices could rise by 80% by 2050, according to some estimates, if offsetting emissions through forestry is over-used. About 350m hectares of land – an area roughly the size of India – could be used for offsetting without disrupting agriculture around the world, but taken together the plans for offsetting from countries and companies around the world could soon exceed this.
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