Nepstad et al think an end to deforestation in the Amazon is possible.
Norway: one billion points
Showing posts with label Brazil. Show all posts
Showing posts with label Brazil. Show all posts
Tuesday, December 08, 2009
Friday, February 20, 2009
Global shift
...But the biggest deals were yet to come. Just after rumors swirled that China Investment Corporation and China Shenhua Energy wanted to take a starter position in a third Australian miner, Fortescue Metals, China unveiled its coup de grace: a 25 billion multi-year deal with Russia. And this time it was not for iron ore, but rather, the master commodity: oil. And they’ve just followed that blockbuster up with a similar deal with Brazil’s Petrobras.-- Gregor.us
What seems to have escaped wider observation, however, is that deals such as these are a clever way for China to dehoard itself of dollars...
Thursday, May 22, 2008
Stop and think
Today we are living through the challenge of prevention, of looking twice before doing something, discussing twice before doing something. Because each thing that we alter can lead to ... dramatic consequences. Those who celebrated the industrial revolution never thought that we were injuring the planet, almost fatally. We didn't have this knowledge. Today we know.-- Marina Silva
Thursday, May 15, 2008
Deforestation
Marina Silva goes, "definitively defeated". A prince chips in.
Mauricio Torres says
Mauricio Torres says
The idea that the caboclo way of life is environmentally destructive is not supported by my research. Communities have often been there for generations, living sustainably. To deny their achievements is a convenient lie - one that allows large companies and their government vassals to justify land grabs.
Monday, December 17, 2007
Eating the forest
Garimpeiros work from daybreak to sundown and sleep in hammocks on site. Even though they live with the hope of striking it rich, the reality is that their lives are spent in what is almost bonded labour. The workmen are entitled to only a 30% share of the gold found at the mine. The rest goes to the owner of the motor, usually a businessman living in a city miles away.-- from Illegal, polluting and dangerous: the gold rush in French Guiana by Alex Bellos
One typical mine being operated by a handful of men was producing just 15g (half an ounce) of gold a day - almost £200 - leaving less than £10 a day each for the workers.
While in other circumstances this could be an acceptable wage, the garimpeiros never leave the rainforest, face endemic malaria and settle disputes by the law of the gun. Their wages are all spent on food, drink and prostitutes.
Saturday, December 01, 2007
Burn baby, burn
Yadvinder Malhi and his colleagues have published an overview paper, Climate Change, Deforestation, and the Fate of the Amazon, drawing on work from their valuable conference earlier this year (which I mentioned in my third caveat here).
Some of the introductory faclets are likely to be familiar: Amazonia hosts about a quarter of the world’s terrestrial species. Some may be less so. For example, Amazonia accounts for about 15% of global terrestrial photosynthesis, and its forests been a significant and continuous part of earth system functioning since the Cretaceous.
Predicted temperature changes more than a little dramatic:
Some of the introductory faclets are likely to be familiar: Amazonia hosts about a quarter of the world’s terrestrial species. Some may be less so. For example, Amazonia accounts for about 15% of global terrestrial photosynthesis, and its forests been a significant and continuous part of earth system functioning since the Cretaceous.
Predicted temperature changes more than a little dramatic:
In recent decades the rate of warming in Amazonia has been about 0.25 °C per decade. Under mid-range GHG emission scenarios, temperatures are projected to rise 3.3 °C (range 1.8–5.1 oC) this century, slightly more in the interior in the dry season, or by up to 8 °C if significant forest dieback affects regional biophysical properties. At the end of the last glacial period, Amazonia warmed at only ~0.1 °C per century.But there are scraps that suggest that not all is necessarily unmitigated gloom. For example:
There is mounting evidence …that intact Amazonian forests are more resilient (though not invulnerable) to climatic drying than is currently represented in vegetation-climate models...The probability of significantly enhanced drought under mid-range greenhouse gas emissions scenarios ranges from > 60% in the southeast to <20% in the west.The authors sketch a climate reslience plan, which includes:
1. Keep the total extent of deforestation safely below possible climatic threshold values (about 30–40% cleared), in a matrix that includes large protected areas with limited fragmentation, and managed landscapes (…).They ask whether such a plan is feasible. ‘Recent developments suggest the good governance is achievable’...[but]...in particular, new financial incentives are needed to act as a countervailing force to the economic pressures for deforestation.’
2. Control fire use through both education and regulation, probably for net economic benefit (…).
3. Maintain broad species migration corridors in ecotonal areas that are most likely to show early signals of climate impacts (…).
4. Conserve river corridors to act as humid refugia and migration corridors for terrestrial ecosystems, sedimentation buffers, and as refugia for aquatic systems (…).
5. Keep the core northwest Amazon largely intact as a biological refuge that hosts the highest biodiversity and is the least vulnerable to climatic drying (…).
Friday, July 20, 2007
Homem do furo
...friends and family are gone. Everyone else you have ever known has vanished. Forever. The loneliness seems unimaginable. But this is reality for one solitary native Brazilian Indian living on a small island of Amazon rainforest amid a sea of cattle ranches and soya plantations.-- from New Scientist (also here).
Virtually nothing is known about him, except that he seems to be the last survivor of his group or people. He has been nicknamed the Man of the Hole because he digs holes a metre wide and 3 metres deep inside little houses that he builds from palm leaves. No one quite knows why he does this. Could they be bolt holes? He also builds huge holes lined with spikes in the nearby forest to trap large animals.
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