Africa, Still Covered In Large Swathes Of Pristine Wilderness, Is Likely To Lose Much Of Its Biological

Africa, still covered in large swathes of pristine wilderness, is likely to lose much of its biological wealth if dozens of new massive development projects—from highways to railroads to pipelines—get the green light, according to a new study. Most of the projects are designed to increase agricultural production and ease the transport of minerals such as iron and coal. Yet if all are built, they’ll create a spider web of some 53,000 kilometers of corridors through deserts, forests, and savannas—and a host of environmental disasters, scientists say. Even worse, they contend, most won’t help the continent feed its people, even though this is the primary justification behind many of the projects.

“Africa is undergoing the most dramatic era of development it’s ever experienced,” says William Laurance, an ecologist at James Cook University, Cairns, in Australia, and the study’s lead author. “No one disputes its need for food and economic development. But these corridors need to be built without creating environmental crises.”

The scientists’ study is a follow-up to aprevious one they published last year inNature warning about the unprecedented number of road and transportation projects being planned globally. 

More Posts from Dotmpotter and Others

9 years ago
Brain, Bone And Blood Vessels Coming Hot Off The Press
Brain, Bone And Blood Vessels Coming Hot Off The Press
Brain, Bone And Blood Vessels Coming Hot Off The Press
Brain, Bone And Blood Vessels Coming Hot Off The Press
Brain, Bone And Blood Vessels Coming Hot Off The Press
Brain, Bone And Blood Vessels Coming Hot Off The Press
Brain, Bone And Blood Vessels Coming Hot Off The Press

Brain, Bone and Blood Vessels Coming Hot Off the Press

Could the days of custom clavicles and bespoke bladders produced just in the knick of time for suffering patients be around the corner?

While keeping an eye on tissue engineering studies, we’ve been seeing some significant wins in the lab that are bringing the sci-fi future of on-demand 3-D printed organs, bone and blood vessels closer. 

Harvard and Brown bioengineers are taking their own routes to build complex tissues in customized 3-D printers. And just the other week, we reported on newly unveiled work at the University of Florida to print complex soft structures in baths that could one day birth replacement human parts along with soft robots.

Now, Carnegie Mellon engineers reported on Friday that they had successfully printed simplified proof-of-concept anatomical structures like mini femurs, blood vessels and brains suspended in soft gelatin. Learn more and see a video below.

Keep reading


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9 years ago

UK top government official: human rights no longer a "top priority"

UK Top Government Official: Human Rights No Longer A "top Priority"

Sir Simon McDonald, Permanent Secretary at the Foreign Office – the country’s most senior Foreign Office official – told MPs that his department had sidelined human rights work in favour of global trade agreements (the same agreements that allow sovereign wealth funds from the world’s most brutal, oppressive states to buy huge swathes of the UK’s public institutions at knock-down prices in the Tories’ great sell-off of public assets).

It’s called the “prosperity agenda” – promoting business at the expense of human rights. For example, Chancellor George Osborne just conducted a trade-mission to China where he didn’t raise human rights issues at all, because “we have different political systems.”

It used to be that globalists argued for liberalised trade with criminal states because it would somehow lift their populations out of forced labour, mass incarceration and totalising surveillance. Now that these values have been exported to the “free” world, the pretense of a human rights agenda for global trade has been abandoned. Now we’re told thatthe spice must flow because it will make the country rich (just don’t look too hard at who in the country is getting rich).

Read the rest

9 years ago
A 40-year-old Man Proposed To Salamatou When She Was Just 14. Every Year, Tens Of Thousands Of Girls

A 40-year-old man proposed to Salamatou when she was just 14. Every year, tens of thousands of girls are married before reaching their 18th birthday. 

They are some of the most vulnerable girls on earth. They are denied their rights, they are at risk of abuse, their health is jeopardized, and their future prospects are limited. 

From 25 November to 10 December, the world observes 16 days of activism against gender-based violence. 

In Niger, which has one of the highest child marriage rates in the world, 16 extraordinary girls refused to become child brides. Read their stories here: http://www.unfpa.org/16-girls-16-stories-resistance


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9 years ago

A reliable way to make people believe in falsehoods is frequent repetition, because familiarity is not easily distinguished from truth.

Daniel Kahneman, Thinking, Fast and Slow


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9 years ago
Antibiotic Resistance Is One Of The Biggest Threats To Global Health Today.

Antibiotic resistance is one of the biggest threats to global health today.

It is compromising our ability to treat infectious diseases and undermining many advances in health and medicine. This can affect anyone in any country, and is not just a problem for regular antibiotic users. 

Look at the causes and tips provided by the World Health Organization (WHO) to find out what you can do. 

How much do you know about #AntibioticResistance? Take this quiz: http://goo.gl/3FRuKQ 


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9 years ago
The Crown Estate Has Launched A Unique Interactive Map That Shows The Estimated Percentage Of UK Electricity

The Crown Estate has launched a unique interactive map that shows the estimated percentage of UK electricity demand being met by offshore wind on an hourly basis. For the first time, the map draws together a range of publically available data to demonstrate the contribution offshore wind is making to the UK’s low carbon energy mix. The UK now has 27 operational wind farms, with nearly 1500 turbines grown from the first two offshore demonstration turbines deployed in 2000. Although there is variation in output on a daily basis, over the course of 2015 offshore wind is expected to meet an average of around 5% per cent of UK electricity demand.

(via Crown Estate launches interactive offshore wind electricity map - Blue and Green Tomorrow)

9 years ago
G20 Governments Collectively Handed Out $452bn In Subsidies For Fossil Fuels In Both 2013 And 2014 -

G20 Governments collectively handed out $452bn in subsidies for fossil fuels in both 2013 and 2014 - four times the amount allocated globally for renewables.

(via Fossil fuels receive four times as many subsidies as renewables, report finds)

9 years ago

Poverty is a tax on cognition

In an outstanding lecture at the London School of Economics, Macarthur “genius award” recipient Sendhil Mullainathan explains his research on the psychology of scarcity, a subject that he’s also written an excellent book about.

Mullainathan begins by establishing the idea that your cognition is limited – you can only think about a limited number of things at one time, and when the number of things you have to pay attention to goes beyond a certain threshold, you start making errors. Then he explains how poor people have a lot more things they have to pay attention to. In the UK, we make fun of politicians for being so out of touch that they don’t know the price of a pint of milk – but poor people have to keep track of the price of everything they require. There’s no room for error. Spend too much on the milk and you can’t afford the bread.

That’s just one of the many taxes on the cognitive load of poor people. David Graeber’s Utopia of Rules details another: figuring out what rich people are thinking. Poor people who piss off rich people face reprisals far beyond those that rich people can expect from each other or from poor people.

This isn’t unique to cash-poverty. Mullainathan asks his audience to recall what life is like when they’re “time poor” – on a deadline or otherwise overburdened. This scarcity can focus your attention, yes: we’ve all had miraculous work-sprints to meet a deadline. But it does so at the expense of thoughtful attention to longer-term (but equally important) priorities: that’s why we stress-eat, skip the gym when our workload is spiking, and miss our kids’ sports’ games when the pressure is on at work.

The experimental literature shows startling parallels between the two conditions: time scarcity and cash scarcity. This leads to a series of policy proscriptions that are brilliant (for example, when we create means-tested benefits that require poor people to go through difficult bureaucratic processes, we’re taxing their scarcest and most precious resource). He also recounts how this parallel is useful in creating an empathic link between rich and powerful people like hedge fund managers and the poorest people alive.

Read the rest

9 years ago
Watch: ESight Could Be Exactly What People With Vision Problems Need.
Watch: ESight Could Be Exactly What People With Vision Problems Need.
Watch: ESight Could Be Exactly What People With Vision Problems Need.
Watch: ESight Could Be Exactly What People With Vision Problems Need.
Watch: ESight Could Be Exactly What People With Vision Problems Need.
Watch: ESight Could Be Exactly What People With Vision Problems Need.
Watch: ESight Could Be Exactly What People With Vision Problems Need.
Watch: ESight Could Be Exactly What People With Vision Problems Need.
Watch: ESight Could Be Exactly What People With Vision Problems Need.

Watch: eSight could be exactly what people with vision problems need.

9 years ago

Greenland is Melting Away

This river is one of a network of thousands at the front line of climate change.

 By NYTimes: Coral Davenport, Josh Haner, Larry Buchanan and Derek Watkins                                    

On the Greenland Ice Sheet — The midnight sun still gleamed at 1 a.m. across the brilliant expanse of the Greenland ice sheet. Brandon Overstreet, a doctoral candidate in hydrology at the University of Wyoming, picked his way across the frozen landscape, clipped his climbing harness to an anchor in the ice and crept toward the edge of a river that rushed downstream toward an enormous sinkhole.

If he fell in, “the death rate is 100 percent,” said Mr. Overstreet’s friend and fellow researcher, Lincoln Pitcher.

But Mr. Overstreet’s task, to collect critical data from the river, is essential to understanding one of the most consequential impacts of global warming. The scientific data he and a team of six other researchers collect here could yield groundbreaking information on the rate at which the melting of the Greenland ice sheet, one of the biggest and fastest-melting chunks of ice on Earth, will drive up sea levels in the coming decades. The full melting of Greenland’s ice sheet could increase sea levels by about 20 feet. [bold/itals mine]

“We scientists love to sit at our computers and use climate models to make those predictions,” said Laurence C. Smith, head of the geography department at the University of California, Los Angeles, and the leader of the team that worked in Greenland this summer. “But to really know what’s happening, that kind of understanding can only come about through empirical measurements in the field.”

For years, scientists have studied the impact of the planet’s warming on the Greenland and Antarctic ice sheets. But while researchers have satellite images to track the icebergs that break off, and have created models to simulate the thawing, they have little on-the-ground information and so have trouble predicting precisely how fast sea levels will rise.

Dire report by three excellent Times journalists covering a team of researchers camped out on the icesheets of Greenland. The conclusion is that glaciers and land ice are melting at rates far higher than scientists anticipated, or that climate models have shown. This means that sea levels are rising faster than projected, and many coastal communities are in grave danger.

The economic impacts are incalculable.


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dot potter

Reminding myself that people are making a difference.

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