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Surveillance spacecraft had done that before, of course, but they paid attention only to military or tactical sites.

Glimpses of Sea Ice Past.

What growth Dubai had experienced was mostly recent; in the 1950s it was little more than a village, with pearl diving its chief industry. How the Athabasca oil sands will look in 30 years may depend on Obama’s decision.

On a planet whose water-based chemistry tips one way or the other on tiny thermal fulcrums, that’s a lot. Every acre of sea that opens up therefore becomes something of a heat sink, raising the water temperature higher and higher, causing the remaining ice to melt even faster.

The pictures, and particularly the movies, that resulted from this painstaking work are astounding. (3.6 million sq. You can’t understand the sheer scale of the oil-sands development in northeastern Alberta unless you’ve been there — preferably flying over the vast spread of open mines, roads and broken forests in a helicopter.

Even that early production took a toll on the land. ICELAND - This stretch of Iceland's northern coast resembles a tiger's head complete with stripes of orange, black, and white.

That meant a satellite or, preferably, multiple satellites that could maintain a steady downward gaze, tracking habitat destruction, urbanization, industrial sprawl and more. Over there are the central-pivot irrigation systems turning the sands of Saudi Arabia into an agricultural breadbasket — a surreal green-on-brown polka-dot pattern in the desert. Processing the images required another magnitude of complexity. The financial capital of China was always a major city, but over the past 30 years it has metastasized across the Yangtze River Delta, building skyscrapers over what were once farming villages. The loss of forest has been rapid—nearly 25,000 sq.
As late as 2012, Las Vegas had one foreclosure filing for every 99 housing units, good for the fourth highest rate in the country. The pipeline has yet to be approved by President Obama, and environmentalists have identified Keystone as a red line, calling on the White House to cancel the project over climate concerns.

But Dubai is still the place to go in the Middle East to spend money — which means artificial palm islands may only be the beginning.

But the real dangers might be invisible. That’s because PRB coal contains on average about a third less sulfur than Appalachian coal, which means that plants that burn PRB coal release less sulfur dioxide (SO2) into the air. It’s a safe bet that few people who have grown up in the Google era have ever heard of Stewart Udall. At the same time, conservatives are pushing Obama to approve it on the grounds that the U.S. will be able to use Canadian oil to displace imported crude from the politically antagonistic Middle East and Russia.

The most recent member of the fleet, Landsat 8, went aloft in February.

All the environmental changes that would have resulted from the impact would have created a highly caustic environment that was really hard to endure. The following photographs are from Camille Seaman's "Melting Away," made over the past decade while working as an expedition photographer on small ships in the Arctic and Antarctic. In 2008, for the first time in history more than half the world’s population lived in urban areas; that proportion will only increase in the years to come as more and more people seek their fortune in cities. It is also the site of the Athabasca oil sands, the largest of oil sands crude in Alberta. Beyond the mountain range is what appears to be a valley with a small river or stream running through the center portion. But it’s in the developing world that the urbanization wave is truly epochal. With the help of massive amounts of computer muscle, they have scrubbed away cloud cover, filled in missing pixels, digitally stitched puzzle-piece pictures together, until the growing, thriving, sometimes dying planet is revealed in all its dynamic churn. Something is definitely wrong and abnormal here! Recovered images of Antarctica showed a greater extent of sea ice than ever measured before by scientists—but the record was short lived.

Given the extra cost and effort, commercial oil-sands production began only in 1967, with investment slowing or stopping when the global price of oil plummeted in the 1980s and much of the ’90s. In an odd twist of fate, the new record was broken in September 2014, only weeks after the discovery. But tens of thousands of them tell rich tales: the decapitation of mountaintops by mining companies extracting the mineral riches beneath; the fish-bone-like patterns loggers carve into forests as they fell trees in intersecting avenues, until the entire region is denuded; lakes and reservoirs that shrink in inverse proportion to the thirsty cities and communities growing up around them; the retreat and disappearance of glaciers.

Gallaher and Campbell hope that extending the data record back in time 15 years will give scientists even more historical context in their investigation of sea ice variability in the region.
2. Google began reaching out to the countries that are home to those facilities, working to repatriate as many of the images as it could. The dramatic effects of mountaintop removal mining can be seen from space. The Powder River Basin produces more than 40% of America's coal, and the land bears the scars of all that mining.

And so the rain forest dies. But that may change in the future.

As the Timelapse images show, full-scale production in the PRB is relatively recent. Seven other satellites followed the first into orbit over the years, sometimes replacing ones that had reached the end of their operational life, sometimes joining ones still in operation. 2020 All Rights Reserved.

Lake Mead’s water level has fallen from a little over 1,200 ft. (365 m) to 1,125 ft. (343 m) now. Switching to low-sulfur PRB coal was a cheap way for plants to meet air-pollution standards, prompting increased coal mining in Wyoming and Montana. The answer will, instead, be a slow process of healing that will only begin with an aggressive plan to curb greenhouse gasses and gradually return us to a thermal equilibrium. km) in 2000 — is predicted to grow by 590%. Keep that up for 41 years, maintaining a photographic record of your travels, and you compile a whole lot of pictures — millions of them, which have since been digitized into petabytes, or billions of bytes of data. Futuristic skyscrapers bloomed almost overnight, including the iconic Oriental Pearl Tower and the tallest building in China: the Shanghai World Financial Tower. There is a 2 billion-Year-Old natural Nuclear Reactor in Africa, 5,000-Year-Old Penguin ‘Mummies’ Found in Antarctica, An Ancient Tablet’s Clue to Immortality Sounds Like One Scientists Study Now, https://www.youtube.com/watch?v=H9PAxAK6fBk.

A single pixel measures about 33 yards (30 m) square, or roughly the size of a baseball infield. To create the map at right, David Gallaher and Garrett Campbell at the National Snow and Ice Data Center (NSIDC) at the University of Colorado tracked down hundreds of 35- and 70-millimeter black-and-white film reels and data tapes at NOAA’s National Climatic Data Center in Asheville, North Carolina.

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