Ocean
Plastiki: sailing the seven seas on a boat made from 12,500 plastic bottles
What do you do if you want to draw attention to the threats faced by the world’s oceans, in particular the huge amount of plastic waste that ends up in them? Easy, you sail across the Pacific Ocean, visiting and documenting environmental hot spots along the way. That, at least, is what the crew of the Plastiki are in the process of doing. The group of six adventurers set out from San Francisco on March 20th, with Sydney, Australia as their final destination. Three and a half months into the 11,000 nautical mile journey, they’re currently about 4,000 miles from the finish line. What makes their odyssey particularly remarkable is their sailboat, the Plastiki – a craft made almost entirely from recycled and/or recyclable plastic that gets the majority of its flotation from approximately 12,500 two-liter plastic bottles. Read More
Canadian adventurer Greg Kolodziejzyk's planned attempt on the world’s first human-powered Canada-to-Hawaii crossing has been delayed. Kolodziejzyk, who has set previous records for human-powered land and water travel was to embark on the two-month trip this week in his custom-built fully-enclosed pedal-powered kayak named WiTHiN. Unfortunately, however, he encountered some difficulties with the boat that couldn’t be fixed in time to make this year’s departure window. Read More
With the latest attempt to stem the oil flow from the Deepwater Horizon oil well by pumping heavy drilling liquids into the well having failed, there is still no end in sight to the disaster that began more than a month ago. To help shed some light on where oil is spilling beneath the ocean surface and to aid biologists and others understand the effects of this catastrophic event, the Monterey Bay Aquarium Research Institute’s (MBARI’s) Division of Marine Operations has sent a high-tech robotic submersible to the oily waters of the Gulf. Read More
The damaged Deepwater Horizon oil well in the Gulf of Mexico is a huge environmental disaster that's said to be gushing anywhere from 5,000 to 100,000 barrels of crude oil into the ocean per day. BP has deployed a reported 2.5 million feet of oil booms in an effort to contain the slick, as well as bringing in over 1,100 vessels to skim it and even burning some of it off the water’s surface. One need only watch the news, however, to realize that some other ideas are needed. BP has received over 10,000 suggestions for dealing with the disaster and is looking into approximately 700. What follows is a look at some - but by no means all - of those products being touted as a solution, and what they would supposedly do to the oil. Read More
It will be like going from black-and-white television to high definition color TV - that’s how researchers at America’s Woods Hole Oceanographic Institution (WHOI) have envisioned an upcoming leap forward in undersea acoustic imaging. Tim Stanton and Andone Lavery have developed and tested two broadband acoustic systems that leave conventional single-frequency systems eating their dust... or water droplets, or whatever. Developed over 20 years, the new technology could revolutionize oceanography, and also has huge commercial and military potential. Read More
Brighter, whiter clouds could fight global warming
Scientists in the US have been cloud-spotting over shipping lanes and have noticed something more interesting than teddy-bear shapes and faces. They have detected that rising steam from passing ships has caused brightening in the clouds which they theorize alters the reflectivity of the cloud and prevents the energy from reaching the Earth. They propose that if this could be achieved artificially via geoengineering it could be an effective defense against global warming. Read More
Deep-sea research is great and everything, but man, those submersibles can get pretty cramped. The other, bigger problem is that it requires going off and traveling on a ship, which is costly and can therefore only be done a few times a year. Fortunately, however, there’s now a way of obtaining real-time undersea data without leaving your office. NEPTUNE Canada, the world’s largest and most advanced cabled seafloor observatory, officially started going live to the Internet last December, giving anyone with an Internet connection free access to what will become an absolute mountain of data from the bottom of the sea. Read More
Mini ice age could hit in a matter of months, not years
Those who scoffed at the swiftness with which the world was plunged into an ice age in the film The Day After Tomorrow may need to rethink their disbelief with new research showing that such a scenario may not be so far from the truth. A new study reveals that switching off the North Atlantic circulation can force the Northern hemisphere into a mini ‘ice age’ in a matter of months rather than the tens of years indicated by previous research. Read More
Could it be that Mars - the dry, red planet - once had an ocean so huge it covered around one-third of its surface … and that rain created it? New research by scientists from Northern Illinois University (NIU) and the Lunar and Planetary Institute in Houston would indicate that could be the case. Using an innovative computer program to produce a highly detailed global map of the valley networks on Mars, their findings indicate the networks are more than twice as extensive (2.3 times longer in total length) as had been previously shown in the only other planet-wide map of the valleys. These valley networks roughly form a belt around the planet between the equator and mid-southern latitudes, which would indicate the presence of a long-gone ocean. Read More
