Rate of tropical rainforest destruction leaps by 62 percent

Globally, tropical rainforests are getting hammered even faster than we thought.  This is grim news indeed for the planet's biologically richest real estate.

Pardon me, thou bleeding piece of Earth... forest loss in Cambodia  (photo by William Laurance)

Pardon me, thou bleeding piece of Earth... forest loss in Cambodia (photo by William Laurance)

That's the conclusion of an important new analysis that used detailed Landsat data to assess deforestation rates from 1990 to 2010, in tropical nations that contain about 80% of the world's remaining rainforests.

The study, led by Do-Hyung Kim of the University of Maryland, USA, contrasted average rates of tropical deforestation between 1990 and 2000, and between 2000 and 2010. 

The authors found that the net rate of forest loss (the deforestation rate minus the rate of forest regeneration and afforestation) jumped from 4 million hectares per year in the 1990s to 6.5 million hectares per year in the 2000s -- a 62 percent increase overall.

In the 2000s, Brazil was the fastest forest-destroying nation worldwide, according to the authors.  However, its deforestation rate in Amazonia began falling in the mid-2000s and is now just 25% or so of its former rate.

Southeast Asia is the major tropical region in the worst shape, with less forest than either the New World or African tropics and the highest relative rate of forest loss.

Deforestation rates are relatively modest in Africa but are accelerating in the Democratic Republic of Congo and Madagascar -- both vital hotspots for biodiversity.

Notably, the University of Maryland study differs in its conclusions from a major analysis by the FAO (United Nations Food & Agricultural Organization). 

The FAO study concluded that deforestation had fallen in the 2000s, relative to the 1990s, but the University of Maryland researchers say the FAO missed important centers of deforestation that were obvious in their satellite analyses.

Clearly, it's time to redouble our conservation efforts in the tropics -- or we may be remembered as the generation that stood by and watched the rainforests die.




Export markets are driving much of tropical deforestation

Why are tropical nations cutting down their forests?  Is it to feed and house their people?  To provide goods for their domestic markets?

Who's benefiting from forest destruction?

Who's benefiting from forest destruction?

Not so much.

In fact, a lot of deforestation is happening so that tropical nations can export stuff -- especially agricultural goods, timber, minerals, and oil -- to consumer nations. 

And who are the big consumers?  At least for major commodities such as palm oil, beef, soy, and timber, the European Union and China rank as the biggest importers.

That's the conclusion of a recent analysis by the Center for Global Development, an independent think-tank based in London and Washington, D.C.

The analysis focused on six of the most important tropical nations -- Bolivia, Brazil, Democratic Republic of the Congo, Indonesia, Malaysia, and Papua New Guinea -- as well as Argentina and Paraguay.  These countries produce a big chunk of the four internationally traded commodities (beef, soy, palm oil, timber) that were the focus of the study.

The study found that about a third of all deforestation could be directly attributed to those four export commodities.  And if one includes beef production in the Amazon, which is mostly 'exported' to the major population centers in southern Brazil, then exports of the four commodities account for a whopping 57% of all deforestation.

In all of the studied countries except for Bolivia and Brazil, export markets were the dominant drivers of deforestation.  Moreover, for most of the eight countries, the importance of export markets as a driver of deforestation and greenhouse-gas emissions increased over time.

What this says is that much of tropical deforestation is being driven not by the needs of local people, but by growing global demand.  The E.U. and China are big sinners, but there's plenty of blame to spread around among other nations.

A lot of the food and timber we consume comes from tropical nations.  We all want to live well, but there is no free lunch.  Somewhere, a chainsaw is roaring and a bulldozer growling so that we can have cheap food and timber.