Earth’s intact forests vanishing at accelerating pace: scientists

PARIS: Earth’s intact forests shrank by an area larger than Austria every year from 2014 to 2016 at a 20 percent faster rate than during the previous decade, scientists said Wednesday as the UN unveiled an initiative to harness the “untapped potential” of the land sector to fight climate change.

Despite a decades-long effort to halt deforestation, nearly 10 percent of undisturbed forests have been fragmented, degraded or simply chopped down since 2000, according to the analysis of satellite imagery.

Average daily loss over the first 17 years of this century was more than 200 square kilometres (75 square miles).

“Degradation of intact forest represents a global tragedy, as we are systematically destroying a crucial foundation of climate stability,” said Frances Seymour, a senior distinguished fellow at the World Resources Institute (WRI), and a contributor to the research, presented this week at a conference in Oxford.

“Forests are the only safe, natural, proven and affordable infrastructure we have for capturing and storing carbon.”

The findings come as the United Nations Development Programme (UNDP) and five major conservation organisations launched a five-year plan, Nature4Climate, to better leverage land use in reducing the greenhouse gas emissions that drive global warming.

“Thirty-seven percent of what is needed to stay below two degrees Celsius” — the cornerstone goal of the 196-nation Paris Agreement — “can be provided by land,” said Andrew Steer, WRI President and CEO.

Some 500 million people worldwide depend directly on forests for their livelihood.

So-called “intact forest landscapes” — which can include wetlands and natural grass pastures — are defined as areas of at least 500 sq km with no visible evidence in satellite images of large-scale human use.

That means no roads, industrial agriculture, mines, railways, canals or transmission lines.

As of January 2017, there were about 11.6 million sq km of forests worldwide that still fit these criteria. From 2014 to 2016, that area declined by more than 87,000 km2 each year.