“… plastic debris is often contaminated with toxic chemicals. Plastics can absorb and concentrate toxic pollutants present at trace levels in seawater, and some of the chemical additives mixed in during the manufacturing process can be toxic as well. When marine organisms ingest chemical-laden plastic pieces, some of the pollutants may be released within the gut of the animal and absorbed into body tissue. Although it is uncertain how much of these harmful chemicals enter marine animals due to ingestion of plastic debris in the ocean, laboratory experiments suggest there may be reason for concern.”
Ted Scambos, the lead scientist at NSIDC, said: “Antarctic sea ice really went down the rabbit hole this time.” His colleague Walt Meier, who also works at Nasa, added: “The Arctic has typically been where the most interest lies, but this month, the Antarctic has flipped the script and it is southern sea ice that is surprising us.”
“We believe the high count this year is partly explained by excellent viewing conditions, but it also appears to reflect increased food availability in the range center,” says Dr. Tim Tinker, a research ecologist who leads the USGS sea otter research program. “The boom in sea urchin abundance throughout northern and central California has provided a prey bonanza for sea otters, and that means more pups and juveniles are surviving to adulthood.”
Human actions have already increased carbon on the planet by about 40 percent. A quarter of that goes into the ocean. And the ocean has decreased by about .2 pH units, which may not sound like a lot. But, pH is a logarithmic scale like the Richter scale. So .2 pH is about 30% more acidic than it was before the Industrial Revolution.
A slogan of the last century was ‘think globally, act locally.’ But if we’re to deal with the collapse of living systems today we have to think and act locally, regionally and globally simultaneously. That would probably not be possible without the communications tools we now have on our laptops and other devices.
Editor’s Note: The Chumash Heritage National Marine Sanctuary Nomination has been proposed to NOAA. The proposed marine sanctuary would begin at Santa Rosa Creek in Cambria at the Monterey Bay National Marine Sanctuary southern boundary, and end at Gaviota Creek in… Read More ›
Water is much denser than air, so its molecules are packed tighter together. This means that sound (which relies on molecules vibrating and pushing against one another) propagates muchfurther and faster under water than in air.