9
POPSGiant Crack in Africa Will Create a New Ocean The thinking is that the Red Sea will eventually pour into the new sea in a million years or so. The new ocean would connect to the Red Sea and the Gulf of Aden, an arm of the Arabian Sea between Yemen on the Arabian Peninsula and Somalia in eastern Africa.
6
POPSAn Open Letter to the Council of the American Physical Society Studies of a variety of natural processes, including ocean cycles and solar variability, indicate that they can account for variations in the Earth’s climate on the time scale of decades and centuries. Current climate models appear insufficiently reliable to properly account for natural and anthropogenic contributions to past climate change, much less project future climate. The APS supports an objective scientific effort to understand the effects of all processes – natural and human --on the Earth’s climate and the biosphere’s response to climate change, and promotes technological options for meeting challenges of future climate changes, regardless of cause. List of 160 signers of the APS petition available
8
POPSMap Of Active Lakes Below Antarctic Ice For some Antarctic lakes, pressure exerted by the ice above forces its water to fill an adjacent lake. The movement results in elevation changes at the surface over both lakes, detectable by NASA satellites. Credit: NASA Goddard's Scientific Visualization Studio Understanding this plumbing is important, as it can lubricate glacier flow and send the ice speeding toward the ocean, where it can melt and contribute to sea level change. But figuring out what's happening beneath miles of ice is a challenge. Researchers led by Smith analyzed 4.5 years of ice elevation data from NASA's Ice, Cloud and land Elevation satellite (ICESat) to create the most complete inventory to date of changes in the Antarctic plumbing system. The team has mapped the location of 124 active lakes, estimated how fast they drain or fill. Read more.
7
POPSIdiots Trying To Play Scientist
As temperatures rise, the sea bed grows warmer and frozen water crystals in the sediment break down, allowing methane trapped inside them to escape. OK everyone, let’s remember where we are " the ARCTIC, because this is important. It’s really cold in the Arctic, especially in the deep waters. The gas is normally trapped as “methane hydrate” in sediment under the ocean floor. “Methane hydrate” is an ice-like substance composed of water and methane which is stable under conditions of high pressure and low temperature. As temperatures rise, the hydrate breaks down. So this new evidence shows that methane is stable at water depths greater than 400m off Spitsbergen. Trust me when I note that pressure and temperature are not the only factors " by far " which dictate when the methane can be released. The make up of the sea floor is also important. If it is not stable or strong then the methane can be released in one area and not another under the same temps and pressures.
8
POPSPhysical connection between the decadal solar cycle and global climate patterns
That small amount of extra heat leads to more evaporation, producing extra water vapor. In turn, the moisture is carried by trade winds to the normally rainy areas of the western tropical Pacific, fueling heavier rains. As this climatic loop intensifies, the trade winds strengthen. That keeps the eastern Pacific even cooler and drier than usual, producing La Niña-like conditions. Although this Pacific pattern is produced by the solar maximum, the authors found that its switch to an El Niño-like state is likely triggered by the same kind of processes that normally lead from La Niña to El Niño. The transition starts when the changes of the strength of the trade winds produce slow-moving off-equatorial pulses known as Rossby waves in the upper ocean, which take about a year to travel back west across the Pacific. The energy then reflects from the western boundary of the tropical Pacific and ricochets eastward along the equator, deepening the upper layer of water and warmi
10
POPSOcean Cooling Falsifies Global Warming Hypothesis this not only demonstrates that the United Nation’s Intergovernmental Panel on Climate Change models are failing to accurately predict global warming, but also presents a serious challenge to the integrity of the AGW hypothesis. Mr DiPuccio concludes “When all is said and done, if the climate system is not accumulating heat, the hypothesis is invalid.”
Newest Clips
see Newest Clips
Pops
Comments
Tags
2
Most Pops
Print
Save
Turn on live update