Tuesday, December 28, 2010

Rivers run dry as drought hits Amazon

Climate change has been on everyone's minds for much of the year, and not just because of the climate change conference in Cancun. In places like Vietnam, Colombia and Pakistan, it's a matter of battling unpredicatable, extreme weather everyday. Here is one of GlobalPost's greatest hits of 2010, a look at the droughts plaguing the world's largest rainforest.
MUTUM, Brazil — A motorboat barreling through the night up a shallow Amazon stream could only beat the odds for so long.
Just after 9 p.m., the aluminum canoe slammed to a halt with the sound of a thunderclap. Passengers and cargo lurched into the air. Shouts of surprise, profanity and a man-sized splash echoed in the dark.
A swift lesson on Newtonian physics and the risks of night boating had been delivered by a large, semi-submerged tree.
The mishap demonstrated what everyone in this remote corner of the Brazilian jungle had been saying for days.
The world’s largest rain forest was dangerously dry, and may well be drying out.
October marked the end of one of the worst Amazon droughts on record — a period of tinder-dry forests, dusty cropland and rivers falling to unprecedented lows. Streams are the highways of the deep jungle and they’re also graveyards for dead trees, usually hidden safely under fathoms of navigable water.
But not this year, and the drought’s significance extends far beyond impeded boats.
While the region has seen dry spells before, locals and experts say droughts have grown more frequent and severe. Scientists say there’s mounting evidence the Amazon's shifting weather may be caused by global climate change.

Friday, December 17, 2010

Climate Change

Climate Change

I intend to come back to this strip and rewrite some of the first half, in order to make the science clearer. I'm sure there will be a few spelling errors and suchlike. Feel free to point them out, but keep in mind that I've been staring at many of these pages for weeks, to the point where even the word 'and' looks funny to me. I shall be adding on references to this strip over the coming few days. Thanks to Albert the Knowledge Penguin for his help.

1 climate

2 climate change

3 climate change

4 climate change

5 climate change

6 climate change

7 climate change

8 climate change

9 climate change

10 climate change

11 climate change

12 climate change

13 climate change

14 climate change

15 climate change

16 climate change

17 climate change

18 climate change

A few references. More will be posted shortly.

Superb New Yorker piece about the Koch Brothers and their involvement with the far right.

That Proceedings of the National Academy of Science paper, which I mention in the strip, on the numbers of climate researchers who believe that science points to the truth of man made climate change, compared to those researchers who don't.

Excellent book that does what it says on the tin. Merchants of Doubt: How a Handful of Scientists Obscured the Truth on Issues from Tobacco Smoke to Global Warming, by Naomi Oreskes and Erik Conway.

NASA's climate change evidence page.

Wikipeadia entry on the the Fourth Assessment Report (AR4) of the United Nations Intergovernmental Panel on Climate Change (IPCC).

Scott Mandia's research into the media's deplorable Climategate coverage.

Sunday, December 12, 2010

Deforestation: The hidden cause of global warming

The accelerating destruction of the rainforests that form a precious cooling band around the Earth's equator, is now being recognised as one of the main causes of climate change. Carbon emissions from deforestation far outstrip damage caused by planes and automobiles and factories.
The rampant slashing and burning of tropical forests is second only to the energy sector as a source of greenhouses gases according to report published today by the Oxford-based Global Canopy Programme, an alliance of leading rainforest scientists

Friday, November 5, 2010

Rivers run dry as drought hits Amazon

Droughts are growing more severe. Has the world's largest rain forest reached its tipping point?

MUTUM, Brazil — A motorboat barreling through the night up a shallow Amazon stream could only beat the odds for so long.
Just after 9 p.m., the aluminum canoe slammed to a halt with the sound of a thunderclap. Passengers and cargo lurched into the air. Shouts of surprise, profanity and a man-sized splash echoed in the dark.
A swift lesson on Newtonian physics and the risks of night boating had been delivered by a large, semi-submerged tree.
The mishap demonstrated what everyone in this remote corner of the Brazilian jungle had been saying for days.
The world’s largest rain forest was dangerously dry, and may well be drying out.
October marked the end of one of the worst Amazon droughts on record — a period of tinder-dry forests, dusty cropland and rivers falling to unprecedented lows. Streams are the highways of the deep jungle and they’re also graveyards for dead trees, usually hidden safely under fathoms of navigable water.
But not this year, and the drought’s significance extends far beyond impeded boats.
While the region has seen dry spells before, locals and experts say droughts have grown more frequent and severe. Scientists say there’s mounting evidence the Amazon's shifting weather may be caused by global climate change.

Thursday, October 21, 2010

Climate Change



Most vulnerable places to climate change

Tuesday, September 14, 2010

Scientists investigate massive walrus haul-out in Alaska

Scientists in the Arctic are reporting a rare mass migration of thousands of walrus from the ice floes to dry land along Alaska's coast.
Researchers from the US Geological Survey (USGS), who have been tracking walrus movements using satellite radio tags, say 10,000 to 20,000 of the animals, mainly mothers and calves, are now congregating in tightly packed herds on the Alaskan side of the Chukchi Sea, in the first such exodus of its kind.
"It's something that we have never seen before in this area," said Geoff York, of the WWF's global Arctic programme. "As the ice decreases, the walrus are abandoning it earlier and earlier. They are having to swim ashore, or to linger on less suitable drift ice for long periods of time."
The flight of the walrus, first reported by the Alaska Dispatch, has reinforced warnings from scientists that the lumbering animal may be headed for extinction because of climate change.
Arctic sea ice dropped to its third lowest level in recorded history this month. The USGS study noted that the entire Chukchi shelf could be completely ice-free during August, September and October by the end of the century.

Friday, September 10, 2010

Freshwater turtles face 'bleak future'

Freshwater turtles are in catastrophic decline, according to a new analysis by Conservation International (CI).
The group says more than a third of the estimated 280 species around the world are now threatened with extinction.
The unsustainable collection of turtles for food and to supply a lucrative pet trade are the key drivers behind the fall in numbers.
Habitat loss as a result of river-damming for hydro-electricity is another major concern.

Thursday, September 9, 2010

Most Penguin Populations Continue to Decline, Biologists Warn

Penguin biologists from around the world, who are gathered in Boston the week of September 6, warn that ten of the planet's eighteen penguin species have experienced further serious population declines. The effects of climate change, overfishing, chronic oil pollution and predation by introduced mammals are among the major factors cited repeatedly by penguin scientists as contributing to these population drops. Prior to the conference, thirteen of these penguin species were already classified as endangered or threatened. Some penguin species may face extinction in this century.

Tuesday, September 7, 2010

Madagascar’s Pierced Heart

Roughly 90% of the flora & fauna of Madagascar is found nowhere else on Earth. The island’s geographic isolation created a wonderland of biological richness. Now population pressures and political turmoil speed the plunder of its rosewood, minerals, and gems.

Tarnished Earth: the destruction of Canada's boreal forest


Saturday, July 31, 2010

In surprising ways, a Himalayan village adapts to a changing climate



In the village of Kumik, in a remote Himalayan valley of northwest India known as Zanskar, people have an old saying, “Kha Kumik, chu Shila” - the snow falls above Kumik, but the water goes to Shila, a nearby settlement. Intoned with a rhythmic staccato, these six syllables elicit laughs of recognition from most Zanskaris. “Isn’t that life for you?”

Residents of Kumik laugh, too, but more ruefully of late. The people of the village, known as Kumikpas, are mostly subsistence farmers, dependent on seasonal meltwater from snowfields and a small glacier at the top of the valley. But in the last several years, Kumik has experienced a drought of unprecedented severity. Due to changing weather patterns, the snow falls above Kumik less often every year. The glacier, once a blanket over the head of the valley, is now a small cap on the mountaintop. Springs have gotten warmer, melting much of the snow before the short growing season begins in June.

In the developed world, the global conversation about climate change is often framed in vaguely terrifying abstractions - reams of dire scientific data, photos of calved icebergs, charts of sea level rise, extrapolations of drought. The Kumikpas face a situation far more immediate and concrete. The decline in late-summer water flow has caused entire harvests to fail, raising the specter of a permanent food crisis.

The Kumikpas have responded to their conditions accordingly, in swift, decisive, and far-seeing ways. Without access to sophisticated environmental data, they have decided to make difficult changes in the way they live. They have not only adapted to the drought, but also claimed some measure of responsibility for it.

As the long-anticipated Copenhagen summit on climate change gets underway next week, with negotiators for 192 nations working to hammer out a rough consensus on reducing greenhouse gas emissions to slow atmospheric warming, a parallel concern is growing among policymakers: how to adapt to the environmental and climatic disturbances that are coming, whether we like it or not. In industrialized countries, the effort to cope with the emerging effects of climate change is just beginning. As dramatic changes start to hit places like Kumik, however, the effort has already started to shape their lives. The inhabitants’ experience offers not only an early look at the kind of disruption likely to arrive in many other communities, but also some surprising lessons in human resilience.

Ishay Paldan, a lean man with a weathered face that crinkles easily into a smile, has been living and farming in Kumik for more than 80 years. Over a simple meal of kholak - a mixture of roasted barley flour and butter tea boiled on his dung-fired stove - he explained Kumik’s situation in incongruously upbeat tones. “When I was a child,” he said, “there were no problems with water. The glacier was much bigger.”

Now the village often runs out of water by mid-August, weeks before the harvest. So, in 2001, Paldan said, the villagers called a meeting. Everyone agreed that the single erratic stream could no longer support the village’s crops. Something had to be done. The Kumikpas quickly concluded they had two options: find more water or abandon their homes. They had already tried finding water, repeatedly and quixotically, over the years. Paldan recounted the villagers’ multiple attempts to divert more snowmelt by building stone canals at the head of the valley, at heights of more than 18,000 feet. He described the splitting headaches and mimed the swollen hands of those who lingered too long at such high altitude to gather stones and dig trenches.

“It was just too difficult,” he said with a shrug. At the same time, inaction was not an option. So the villagers finally decided to do something radical; they would relocate the entire village to a new site three kilometers below, perched next to the roiling Zanskar River, where water would be more plentiful.

This choice involves a painful tradeoff. Their current land is rich, with fertile soil and plenty of wood and dung for fuel. The new land, though closer to reliable water, is poor, a few hundred acres of rock-strewn plateau donated by the state government.

So now, most villagers are laying plans to abandon their carefully tended plots and centuries-old terraces. Over the next several years, they will build new houses, fertilize open and dusty fields, and irrigate them with river water delivered by a new canal. They will uproot and replant themselves, with all the subtler emotional challenges that implies. A house in Zanskar is the locus of the family’s household deities, of shared memories and stories of ancestors. It is intimately linked to a family’s agricultural holdings, irrigation rights, and social status. This complex network of functions and meanings will have to be re-created or reinvented on the plains of Lower Kumik. A process that has taken, by some local estimates, close to a thousand years will now be compressed into less than a decade.

Each family is planning to build a new home and till new fields in Kumik Yogma (Lower Kumik). Most will continue growing barley and buckwheat, and tending their herds of yak, sheep, and cows. And everybody will try to maintain the traditional system for managing water rights for the new irrigation canal they are building.

As we chatted on his front step, Tsering Motup, a Kumik schoolteacher, paused and looked around at his neighbors’ stately whitewashed houses. “I feel the same sadness as a young girl who marries into another family and has to leave her home,” he said.

But another spirit has taken hold as well: the idea that the move could bring some positive changes. Some settlers of Kumik Yogma have sought to warm their homes using passive solar design features, to reduce dependence on stoves that burn precious dung and emit unhealthy soot. Others talk about constructing a solar-powered community hall.

Tsewang Rigzin, a local agricultural officer who grew up in Kumik, thinks special pumps - either powered mechanically by the flow of the river or electrically by photovoltaic cells - could be used for additional irrigation. He’s also interested in experimenting with ways to fertilize the soil organically, despite a local trend of increasing dependence on synthetic fertilizer. “With a systematic design,” he said brightly, “the new Kumik could be a model for the region.”

Over time I learned that most Zanskaris simply weren’t aware of global climate science and its conclusions, and eventually I posed the question to as many Zanskaris as I could: Who, or what, was drying up Kumik?

Some offered clinical descriptions: unfortunate accidents of timing and sun angles on the mountain heights. A few from other villages mentioned an ancient local curse, and saw it as the revenge of fairy-like spirits who had been forced long ago to build the long stone wall that encloses Kumik’s fields to this day.

But a majority of my informal sample gave a consistent, and surprising, answer: We are to blame, they said. According to local legend, the spirits of each place, known as lha, are bound in a reciprocal relationship with the human inhabitants, rewarding people’s good stewardship of the land by blessing them with prosperity, fertility, abundant snow, and strong sunshine to melt it. But something has gone awry. “The lha are punishing people for behaving badly,” Motup, the teacher, explained: Nowadays people don’t perform the old prayers as much, seem less inclined to help each other, are always chasing money and material things, and consuming more and more.

Of course, consumption is a relative matter - I noticed just two vehicles and not one television in the whole village. But the people of Kumik make a point that most of us would find hard to dispute: Our decisions about how we lead our lives have consequences for natural systems. On one reading, their attempt to choreograph their complex relationship with the lha may represent the only viable response to this crisis. They have taken responsibility for the only elements of the system they can control - their own attitudes and practical responses.

On my first trip to the village, I met with Phuntsog Stobdan, the young headmaster of the local primary school. I had come to Zanskar to research energy-efficient building methods, and Stobdan had sought me out for advice on his detailed design of a passive-solar-heated home for his family at Kumik Yogma. We talked well into the evening, sipping tea and chang, the pungent local barley wine. We discussed one of his optimistic visions for the new settlement, shared by other young villagers - homes and vegetable greenhouses powered and heated by solar energy.

But at one point Stobdan led me outside and showed me the battered metal sign he had mounted near his gate a couple of years ago. A brief litany of woe, it described the village’s straits in English for the rare foreign visitor. Stobdan read it aloud to me, haltingly, in a low monotone: “Due to failure of snowfall in the last 2 years the people couldn’t harvest even a blade of grass & consequently had to sell their yak, cows, etc. at very nominal prize [sic].”

The Kumikpas may be famed for their defiantly cheerful stoicism, but I could feel that a psychic crack had opened. This metal sign was like a flare to the outside world, a signal of desperation.

Then Stobdan turned to me, eyes twinkling, eyebrows raised, as though he had just remembered an old joke. “Kumik was the first village in Zanskar,” he said with a wry grin, “and now it is the first to be destroyed!”

He looked at me searchingly, to see if I appreciated the ironic symmetry of it all. After a moment, I submitted to the sheer logic of his emotional adaptation to calamity. We both shook our heads and laughed for a long minute, until we were silent.

Then we discussed the design of his new, solar-heated house, scratching plans in the dirt.

Jonathan Mingle is a writer based in Vermont. He developed this article with the support of Project Word, a Massachusetts-based media nonprofit. Nicolas Villaume is a photographer based in Lima and Paris.

Sunday, March 28, 2010

What We Know about Climate Change

Is Earth Past the Tipping Point?

For 10,000 years, our world seemed endless. The sky was the limit. But today’s world looks much smaller. We’ve cleared, consumed and polluted our way across the globe. The planet is shrinking. Have we pushed Earth past the tipping point? That’s a critical issue we explore in our second Big Question video, which draws on research from “Planetary Boundaries: A Safe Operating Space for Humanity,” published this past fall in the journal Nature.

http://www.scientificamerican.com/article.cfm?id=boundaries-for-a-healthy-planet

Saturday, March 27, 2010

Earth Hour 2010


Is Chinese Economic Demand Killing Africa's Gorillas?


Perhaps the worst misfortune to befall the world's gorillas is that they live in some of the most resource-rich and lawless parts of the planet. Their forest homes in Africa are rich in timber, gold, diamonds and coltan, the mineral used in electronics like cell phones, and the scramble to get at those minerals has been joined by ragtag militias, national armies, multinationals and governments alike.
That means it is an unusually bad time to be a gorilla. A new U.N. report warns that most of the remaining gorillas in Africa could go extinct within 10 to 15 years in the Greater Congo Basin, the swath of forest and savanna that stretches from Africa's Atlantic coast across the Democratic Republic of Congo (DRC) to Rwanda and Uganda in the east. (See pictures of species near extinction.)
The races for timber, gold and coltan are largely to blame for habitat loss, said the report. Militias sell their goods to middlemen and corporations that ignore the destruction caused by the resource trade, and they must be held accountable for the loss of biodiversity in the region. "Companies involved, also multinationals, have shown little or no concern regarding the origins of the resources obtained," says the report, co-authored by the U.N. Environment Program and Interpol. Militia groups that control mining in parts of Congo keep afloat with "an influx of arms in exchange for minerals and timber through neighboring countries, including the continued involvement of corrupt officials and subsidiaries of many multinational companies."
Along with habitat loss, the apes face threats from human population growth and a surge in the bush-meat trade — locals and organized traders killing wildlife to eat and sell — along with the spread of the Ebola virus, estimated to have killed about a third of the world's gorillas in the past 15 years.

Tuesday, March 16, 2010

Climate change is taking a toll on U.S. bird populations

North American bird species are "facing a new threat—climate change—that could dramatically alter their habitat and food supply, and push many species towards extinction," said Secretary of the Interior Ken Salazar on Thursday when he announced the new report, "The State of the Birds: 2010 Report on Climate Change."

According to the report, climate changes will have "an increasingly disruptive effect on bird species in all habitats." Oceanic migratory species and birds living in Hawaii will face the greatest threats, according to the report.Among the report's key findings:

• All 67 species of oceanic birds commonly found in the U.S. (including albatrosses, petrels, tropical terns, tropic birds, frigate birds and puffins) are vulnerable to disruptions in their habitats due to climate change. The birds all have low reproductive rates and rely on locations which are likely to face heavy changes, along with the climate. Overfishing and invasive species also threaten these oceanic birds.

• Coastal birds (such as the saltmarsh sparrow) will be threatened by rising sea levels and increased storm activity, which will damage or destroy the fragile ecosystems on which they rely.

• Island birds will also be threatened by rising sea levels and shrinking habitats. Hawaii's puaiohi and 'akiapola'au, along with the Puerto Rican parrot are among the species that will feel the pinch in these circumstances.

• Arctic and alpine species like the white-tailed ptarmigan and gray crowned rosy-finch will lose critical breeding and feeding habitat as increased temperatures alter the patterns of surface water and vegetation.

• Birds in wetlands will suffer from increased droughts, those in grasslands will experience drier habitats, and forest dwellers will find their habitats shifting northward and to higher elevations, which could separate them from their current food resources.