Thomas Lovejoy

Amazon Drought Accelerating Climate Change

Stephen 1 Must Read, Biodiversity, CLIMATE CHANGE/GLOBAL WARMING, Energy, Forests, Global Issues and Perspectives, global warming, Indigenous People, News, Science , , , , , ,

World’s Forests Losing Their Green. Billions of tonnes of CO2 Released

By Stephen Leahy

UXBRIDGE, Canada, Feb 3, 2011 (IPS)

Last year’s severe drought in the Amazon will pump billions of tonnes of additional carbon dioxide (CO2) into the atmosphere, a new report has found.

Researchers calculate that millions of trees died in 2010, which means the Amazon is soaking up much less CO2 from the atmosphere, and those dead trees will now release all the carbon they’ve accumulated over 300 or more years.

The widespread 2010 drought follows a similar drought in 2005 which itself will put an additional five billion tonnes of CO2 into the atmosphere, Simon Lewis of University of Leeds in the UK and colleagues calculate in a study published Thursday in Science. The United States emitted 5.4 billion tonnes of CO2 from fossil fuel use in 2009.

The two droughts will end up adding an estimated 13 billion tonnes of additional CO2 – equivalent to combined emissions in 2009 from China and the U.S. – and likely accelerating global warming.

“New growth in the region will not offset those releases,” Lewis told IPS.

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After the 2005 drought, Lewis and Brazilian scientist Paulo Brando from the Amazon Environmental Research Institute (IPAM) led teams of researchers on the ground to assess the impacts. They determined that only a few trees died per hectare, and so while the forest canopy cover looked relatively unchanged, there had been a significant change in the forest’s carbon balance. Continue reading →

Why the BP Oil Spill Really Happened

Stephen Biodiversity, CLIMATE CHANGE/GLOBAL WARMING, Energy, global warming, News, OCEAN, Pollution and Toxics, sustainability , , , , , , ,

We Can Live Without Oil

“It was a disaster that was going to happen, but business and government simply pretended it was not going to happen.”

[Update: Why the BP spill cannot be cleaned up]

By Stephen Leahy*

UXBRIDGE, Canada, May 10, 2010 (Tierramérica)

The policies and deals that contributed to the massive oil spill under way in the Gulf of Mexico are also jeopardising the Earth’s vital biological infrastructure, according to the Global Biodiversity Outlook 3, published Monday.

The British Petroleum oil spill of 5,000 barrels a day in the Gulf of Mexico, which began Apr. 20 when an explosion caused a rupture at the Deepwater Horizon oil rig, will have devastating consequences for marine life and coastal ecosystems for decades, experts say.

Similar business and policy decisions, multiplied thousands times over the last hundred years, have put the biological infrastructure that supports life in jeopardy, according to the Global Biodiversity Outlook 3 (GBO3) report, issued May 10 by the Convention on Biological Diversity.

The report is the most current assessment of the state of the planet’s biodiversity, the living organisms that provide us with health, wealth, food, fuel and other vital services.

In this study, “you can clearly see the outlines of what could be the sixth great extinction event of all life on Earth,” said Thomas Lovejoy, biodiversity chair at the Washington DC-based Heinz Centre for Science, Economics and the Environment, and chief biodiversity adviser to the president of the World Bank. Continue reading →

The REAL Amazon-gate: On the Brink of Collapse Reveals Million $ Study

Stephen Agriculture/Food, Biodiversity, CLIMATE CHANGE/GLOBAL WARMING, Forests, News , , , , , ,


By Stephen Leahy

PARIS, Feb 2, 2010 (Tierramérica)

The Amazon jungle “is very close to a tipping point,” and if destruction continues, it could shrink to one third of its original size in just 65 years, warns Thomas Lovejoy, world-renowned tropical biologist.

[UPDATE Sept 6’10: The Amazon River is at its lowest level in 40 years — in 2005 devastating dry spell damaged vast swaths of South American rainforest Amazon May Be Headed For Another Bad Drought]]

Climate change, deforestation and fire are the drivers of this potential Amazonian apocalypse, according to Lovejoy, biodiversity chair at the Washington DC-based Heinz Centre for Science, Economics and the Environment, and chief biodiversity adviser to the president of the World Bank.

Amazonian rainforest, upper Amazon basin, Lore...
Image via Wikipedia

Lovejoy laid out the scenario for participants at the Biodiversity Science Policy Conference in Paris last week, sponsored by UNESCO (United Nations Educational, Scientific and Cultural Organisation), and marking the beginning of the U.N.’s International Year of Biodiversity.

“The World Bank released a study that finally put the impacts of climate change, deforestation and fires together. The tipping point for the Amazon is 20 percent deforestation,” and that is “a scary result,” Lovejoy told Tierramérica in an interview.

The study, “Assessment of the Risk of Amazon Dieback,” released Jan. 22, drew on the expertise of several international research institutions, including Japan’s Meteorological Research Institute, Britain’s Exeter University, Brazil’s Centre for Weather Forecasting and Climate Change (CPET/INPE), Germany’s Potsdam Institute and Earth3000.

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The results and analysis were reviewed by an international blue-ribbon panel of scientists. Continue reading →