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don’t the clouds in this video remind you of cartoon ocean waves? an explanation via npr:
These clouds, in Birmingham, Ala., were formed when two layers of air — one fast, the other slow — collided at just the right speed to create rises and dips that caused the clouds to curl in on themselves and crash, just like waves on a beach.
They are called Kelvin-Helmholtz clouds. They don’t last long, but they remind us that we live in a turbulent ocean of air.
and more from npr on a link between the ocean and the sky:
But now comes an even more beautiful connection. Not only do clouds look like ocean waves, sometimes waves in the ocean help create clouds in the sky.
In his book, The Wave Watcher’s Companion, Gavin Pretor-Pinney says that when waves come crashing down at a beach, creating that white, frothy foam, “the turbulence causes countless tiny air bubbles to form and burst, releasing a fine mist of water droplets into the air.”
How Ocean Waves Build Clouds
When the water evaporates, what’s left are microscopic bits of salt suspended in the air. (That’s why the beach air tastes so salty.) As the air gets hotter, those bit of salt rise higher and become magnets for moisture.
Think of a little dot of salt moving up, up, up into the cooler wetter air. Bits of moisture cling to it as it rises, becoming droplets, the droplets begin to attach to each other, and before you know it, salt-seeded droplets are composing themselves into low-lying clouds.
The ocean, then, is seeding clouds in the sky!
the clouds featured in atolemdro’s background pic caught my eye when i saw them hanging low above the caribbean sea (here’s the full pic for some perspective). maybe the sea waves created them as well.
pictured above is a gigantic storm brewing on the north pole of saturn (taken by nasa’s cassini spacecraft). some perspective:
– the eye of hurricanes found on earth usually range from 5 mi (8 km) to over 120 mi (200 km). the eye of this storm is 1,250 miles (2000 km) wide.
– hurricane katrina reached 175mph (78 m/s). this hurricane is almost doubling that at 330mph (150 m/s).
related: watching god play
Why is this horizon so colorful? Because, opposite the Sun, it is raining. What is pictured above is actually just a common rainbow. It’s uncommon appearance is caused by the Sun being unusually high in the sky during the rainbow‘s creation. Since every rainbow‘s center must be exactly opposite the Sun, a high Sun reflecting off of a distant rain will produce a low rainbow where only the very top is visible — because the rest of the rainbow is below the horizon. Furthermore, no two observers can see exactly the same rainbow — every person finds themselves exactly between the Sun and rainbow’s center, and every observer sees the colorful circular band precisely 42 degrees from rainbow’s center.
“By Internet standards, a perfectly timed photo occurs when two of the following three conditions are met:
1. Perfect Place
2. Perfect Time
3. Perfect Angle
Sometimes the holy trinity of perfectness is achieved and you get an Internet classic like so many of the photographs below.”
you can check out the full list here & my favorites below (click for a closer look):
related: life rewind 2012: photos
first off, apologies for being slow with the posts this week. i’ve been spending too much cozy time with my girl sandy (thoughts & prayers for those still hurting because of the storm). on a related note, let me know what you think about this article on climate change’s role in the recent uptick of natural disasters. written by paul m. barrett for business week:
Yes, yes, it’s unsophisticated to blame any given storm on climate change. Men and women in white lab coats tell us—and they’re right—that many factors contribute to each severe weather episode. Climate deniers exploit scientific complexity to avoid any discussion at all.
Clarity, however, is not beyond reach. Hurricane Sandy demands it: At least 40 U.S. deaths. Economic losses expected to climb as high as $50 billion. Eight million homes without power. Hundreds of thousands of people evacuated. More than 15,000 flights grounded. Factories, stores, and hospitals shut. Lower Manhattan dark, silent, and underwater.
An unscientific survey of the social networking literature on Sandy reveals an illuminating tweet (you read that correctly) from Jonathan Foley, director of the Institute on the Environment at the University of Minnesota. On Oct. 29, Foley thumbed thusly: “Would this kind of storm happen without climate change? Yes. Fueled by many factors. Is storm stronger because of climate change? Yes.” Eric Pooley, senior vice president of the Environmental Defense Fund (and former deputy editor of Bloomberg Businessweek), offers a baseball analogy: “We can’t say that steroids caused any one home run by Barry Bonds, but steroids sure helped him hit more and hit them farther. Now we have weather on steroids.”
In an Oct. 30 blog post, Mark Fischetti of Scientific American took a spin through Ph.D.-land and found more and more credentialed experts willing to shrug off the climate caveats. The broadening consensus: “Climate change amps up other basic factors that contribute to big storms. For example, the oceans have warmed, providing more energy for storms. And the Earth’s atmosphere has warmed, so it retains more moisture, which is drawn into storms and is then dumped on us.” Even those of us who are science-phobic can get the gist of that.
Sandy featured a scary extra twist implicating climate change. An Atlantic hurricane moving up the East Coast crashed into cold air dipping south from Canada. The collision supercharged the storm’s energy level and extended its geographical reach. Pushing that cold air south was an atmospheric pattern, known as a blocking high, above the Arctic Ocean. Climate scientists Charles Greene and Bruce Monger of Cornell University, writing earlier this year in Oceanography, provided evidence that Arctic icemelts linked to global warming contribute to the very atmospheric pattern that sent the frigid burst down across Canada and the eastern U.S.
If all that doesn’t impress, forget the scientists ostensibly devoted to advancing knowledge and saving lives. Listen instead to corporate insurers committed to compiling statistics for profit.
On Oct. 17 the giant German reinsurance company Munich Re issued a prescient report titled Severe Weather in North America. Globally, the rate of extreme weather events is rising, and “nowhere in the world is the rising number of natural catastrophes more evident than in North America.” From 1980 through 2011, weather disasters caused losses totaling $1.06 trillion. Munich Re found “a nearly quintupled number of weather-related loss events in North America for the past three decades.” By contrast, there was “an increase factor of 4 in Asia, 2.5 in Africa, 2 in Europe, and 1.5 in South America.” Human-caused climate change “is believed to contribute to this trend,” the report said, “though it influences various perils in different ways.”
Global warming “particularly affects formation of heat waves, droughts, intense precipitation events, and in the long run most probably also tropical cyclone intensity,” Munich Re said. This July was the hottest month recorded in the U.S. since record-keeping began in 1895, according to the National Oceanic and Atmospheric Administration. The U.S. Drought Monitor reported that two-thirds of the continental U.S. suffered drought conditions this summer.
Granted, Munich Re wants to sell more reinsurance (backup policies purchased by other insurance companies), so maybe it has a selfish reason to stir anxiety. But it has no obvious motive for fingering global warming vs. other causes. “If the first effects of climate change are already perceptible,” said Peter Hoppe, the company’s chief of geo-risks research, “all alerts and measures against it have become even more pressing.”
Which raises the question of what alerts and measures to undertake. In his book The Conundrum, David Owen, a staff writer at the New Yorker, contends that as long as the West places high and unquestioning value on economic growth and consumer gratification—with China and the rest of the developing world right behind—we will continue to burn the fossil fuels whose emissions trap heat in the atmosphere. Fast trains, hybrid cars, compact fluorescent light bulbs, carbon offsets—they’re just not enough, Owen writes.
Yet even he would surely agree that the only responsible first step is to put climate change back on the table for discussion. The issue was MIA during the presidential debates and, regardless of who wins on Nov. 6, is unlikely to appear on the near-term congressional calendar. After Sandy, that seems insane.
Mitt Romney has gone from being a supporter years ago of clean energy and emission caps to, more recently, a climate agnostic. On Aug. 30, he belittled his opponent’s vow to arrest climate change, made during the 2008 presidential campaign. “President Obama promised to begin to slow the rise of the oceans and heal the planet,” Romney told the Republican National Convention in storm-tossed Tampa. “My promise is to help you and your family.” Two months later, in the wake of Sandy, submerged families in New Jersey and New York urgently needed some help dealing with that rising-ocean stuff.
Obama and his strategists clearly decided that in a tight race during fragile economic times, he should compete with Romney by promising to mine more coal and drill more oil. On the campaign trail, when Obama refers to the environment, he does so only in the context of spurring “green jobs.” During his time in office, Obama has made modest progress on climate issues. His administration’s fuel-efficiency standards will reduce by half the amount of greenhouse gas emissions from new cars and trucks by 2025. His regulations and proposed rules to curb mercury, carbon, and other emissions from coal-fired power plants are forcing utilities to retire some of the dirtiest old facilities. And the country has doubled the generation of energy from renewable sources such as solar and wind.
Still, renewable energy accounts for less than 15 percent of the country’s electricity. The U.S. cannot shake its fossil fuel addiction by going cold turkey. Offices and factories can’t function in the dark. Shippers and drivers and air travelers will not abandon petroleum overnight. While scientists and entrepreneurs search for breakthrough technologies, the next president should push an energy plan that exploits plentiful domestic natural gas supplies. Burned for power, gas emits about half as much carbon as coal. That’s a trade-off already under way, and it’s worth expanding. Environmentalists taking a hard no-gas line are making a mistake.
Conservatives champion market forces—as do smart liberals—and financial incentives should be part of the climate agenda. In 2009 the House of Representatives passed cap-and-trade legislation that would have rewarded more nimble industrial players that figure out how to use cleaner energy. The bill died in the Senate in 2010, a victim of Tea Party-inspired Republican obstructionism and Obama’s decision to spend his political capital to push health-care reform.
Despite Republican fanaticism about all forms of government intervention in the economy, the idea of pricing carbon must remain a part of the national debate. One politically plausible way to tax carbon emissions is to transfer the revenue to individuals. Alaska, which pays dividends to its citizens from royalties imposed on oil companies, could provide inspiration (just as Romneycare in Massachusetts pointed the way to Obamacare).
Ultimately, the global warming crisis will require global solutions. Washington can become a credible advocate for moving the Chinese and Indian economies away from coal and toward alternatives only if the U.S. takes concerted political action. At the last United Nations conference on climate change in Durban, South Africa, the world’s governments agreed to seek a new legal agreement that binds signatories to reduce their carbon emissions. Negotiators agreed to come up with a new treaty by 2015, to be put in place by 2020. To work, the treaty will need to include a way to penalize countries that don’t meet emission-reduction targets—something the U.S. has until now refused to support.
If Hurricane Sandy does nothing else, it should suggest that we need to commit more to disaster preparation and response. As with climate change, Romney has displayed an alarmingly cavalier attitude on weather emergencies. During one Republican primary debate last year, he was asked point-blank whether the functions of the Federal Emergency Management Agency ought to be turned back to the states. “Absolutely,” he replied. Let the states fend for themselves or, better yet, put the private sector in charge. Pay-as-you-go rooftop rescue service may appeal to plutocrats; when the flood waters are rising, ordinary folks welcome the National Guard.
It’s possible Romney’s kill-FEMA remark was merely a pander to the Right, rather than a serious policy proposal. Still, the reconfirmed need for strong federal disaster capability—FEMA and Obama got glowing reviews from New Jersey Governor Chris Christie, a Romney supporter—makes the Republican presidential candidate’s campaign-trail statement all the more reprehensible.
The U.S. has allowed transportation and other infrastructure to grow obsolete and deteriorate, which poses a threat not just to public safety but also to the nation’s economic health. With once-in-a-century floods now occurring every few years, New York Governor Andrew Cuomo and New York City Mayor Michael Bloomberg said the country’s biggest city will need to consider building surge protectors and somehow waterproofing its enormous subway system. “It’s not prudent to sit here and say it’s not going to happen again,” Cuomo said. “I believe it is going to happen again.”
David Rothkopf, the chief executive and editor-at-large of Foreign Policy, noted in an Oct. 29 blog post that Sandy also brought his hometown, Washington, to a standstill, impeding affairs of state. To lessen future impact, he suggested burying urban and suburban power lines, an expensive but sensible improvement.
Where to get the money? Rothkopf proposed shifting funds from post-Sept. 11 bureaucratic leviathans such as the Department of Homeland Security, which he alleges is shot through with waste. In truth, what’s lacking in America’s approach to climate change is not the resources to act but the political will to do so. A Pew Research Center poll conducted in October found that two-thirds of Americans say there is “solid evidence” the earth is getting warmer. That’s down 10 points since 2006. Among Republicans, more than half say it’s either not a serious problem or not a problem at all.
Such numbers reflect the success of climate deniers in framing action on global warming as inimical to economic growth. This is both shortsighted and dangerous. The U.S. can’t afford regular Sandy-size disruptions in economic activity. To limit the costs of climate-related disasters, both politicians and the public need to accept how much they’re helping to cause them.
camille seaman’s daughter suggested that she go storm-chasing through the midwestern united states (great kid, right?). so she went. thankfully, the photographer was able to come back with not only her life, but also some beautiful photos. here she is talking about the experience with lens:
It’s life-changing to be under these clouds. Some of them take on the most incredible shapes and forms, and the lightning and the hail are just stunning to behold. It was — I don’t know — like watching God play.
check out seaman’s breathtaking work below (click for closer looks). would you ever want to see these storms in person?