Results tagged “Green Revolution” from onegoodmove

The Green Revolution

Green Revolution's diet of big carbon savings

The Green Revolution of the 1960s raised crop yields and cut hunger - and also saved decades worth of greenhouse gas emissions, a study concludes.

US researchers found cumulative global emissions since 1850 would have been one third as much again without the Green Revolution's higher yields.

Although modern farming uses more energy and chemicals, much less land needs to be cleared.

The study is published in Proceedings of the National Academy of Sciences. . . .

Modern intensive agriculture is often criticised over its relatively heavy use of chemicals, which can impact insects, larger animals and plant life in the vicinity of the farm.

In addition, the run-off of excess fertiliser into rivers and lakes can generate blooms of algae and "dead zones" of water where nothing can survive.

However, strictly from the point of view of greenhouse gas emissions, intensive farming appears to be significantly the better option.

"Our results dispel the notion that industrial agricultural with its petrochemicals is inherently worse for the climate than a more 'old-fashioned' way of doing things," said Dr Davis.

He and his team suggest that policymakers keen to reduce greenhouse gas emissions should look towards further increases in crop yields, which they say might be more economical than other innovations.

Existing research shows that curbing production of meat - which is an inefficient user of land and water - would by itself have some impact on emissions, though by precisely how much is debated.