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![]() After frequent blackouts during summer in half the nation, the country now has to struggle to keep up with the surging electricity consumption in winter. Top Scientists Conclude Human Activity Is Affecting Global Climate ![]() Two of the nation's best-known atmospheric scientists, after reviewing extensive research by their colleagues, say there is no doubt human activities are having measurable--and increasing--impacts on global climate. |
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NOAA Reports Above-Normal Atlantic Hurricane Season![]() With the 2003 Atlantic hurricane season having officially ended Nov. 30, NOAA hurricane specialists said the above-normal 2003 Atlantic hurricane season produced 14 tropical storms, of which 7 became hurricanes and 3 became major hurricanes (Fabian, Isabel and Kate). Six of the named systems affected the United States, bringing high wind, storm surge or rain. Shrinking Arctic Tells Many Stories ![]() In 2002, a series of scientific studies pointed to dramatic changes in Arctic sea ice. Sea ice that survives the summer and remains year round�called perennial sea ice�is melting at the alarming rate of 9 percent per decade, according to a study by NASA Goddard Space Flight Center senior researcher Josefino Comiso. The extent of Arctic sea ice at summer's end reached a record low in 2002, reported NASA-funded researchers at the University of Colorado's National Snow and Ice Data Center, in Boulder. Early findings suggest that summertime melting of Arctic sea ice in 2003 is on pace to rival last year's low. Just Add Water ![]() High in the mountains of Turkey, ravines and gullies collect water that becomes the Tigris and Euphrates Rivers. Flowing southward to the Persian Gulf across southern Turkey, Syria, and Iraq, the rivers drip life into the arid terrain. This area of water in the desert is part of the Fertile Crescent, a swath of well-watered land that hugs the eastern coast of the Mediterranean Sea, peaks in southern Turkey, and trails southward through Mesopotamia�the land between rivers�in Syria and Iraq. Thunderstorm Research Shocks Conventional Theories ![]() If Joseph Dwyer, Florida Tech associate professor of physics, is right, then a lot of what we thought we knew about thunderstorms and lightning is probably wrong. What Makes Volcanoes Explode ![]() Two University of California, Berkeley, geophysicists have proposed an explanation for the unpredictable nature of volcanic eruptions, why volcanoes sometimes ooze lava, but at other times explode in showers of ash and pumice. Geologists Discover New Class Of Spreading Ridge On Sea Bottom ![]() Scientists have discovered a new "ultra-slow" class of ocean ridge involved in seafloor spreading. Investigations in the remote regions of the planet--in the far south Atlantic and Indian Oceans and the sea floor beneath the Arctic icecap--found that for large regions there, the sea floor splits apart by pulling up solid rock from deep within the earth. These rocks, known as peridotites (after the gemstone peridot) come from the deep layer of the earth known as the mantle. Orbital Awarded GOES-R Study Contract ![]() Orbital Sciences Corporation said Monday that it has been awarded a $2 million contract by the National Oceanic and Atmospheric Administration (NOAA) to conduct studies of potential space and ground system architectures for the next generation of the Geostationary Operational Environmental Satellite (GOES) system known as GOES-R. |
Old Japanese Tsunami Data Points To Massive Quakes In North America![]() Guided by Japanese writings from an era of shoguns, an international team of scientists today reported new evidence that an earthquake of magnitude 9 struck the northwestern United States and southwestern Canada three centuries ago. The findings are likely to affect the region's precautions against future earthquakes and tsunamis. Sarsat Caps Busy Week With Life-Saving Rescue Operations ![]() On land and in the sea satellites helped save lives the past week. In one incident, two passengers onboard a sailing vessel from Harpswell, Maine, headed for the Caribbean Island of Antigua, made it only as far as Nantucket, Mass., because of rough sea conditions spawned by violent weather. (Click NOAA image for larger view of Cospas-Sarsat system overview.) Scientists launch San Andreas Fault Observatory at Depth ![]() Despite tremendous technological advances in earthquake seismology, many fundamental mysteries remain. The critical question of whether earthquakes will ever be predictable continues to plague seismologists � in part because there is no way to directly observe what goes on miles below the surface where earthquakes occur. Greatest Extinction Probably Caused By Meteorite Or Comet Impact ![]() Long before the dinosaurs ever lived, the planet experienced a mass extinction so severe it killed 90 percent of life on Earth, and researchers at the University of Rochester think they've identified the unlikely culprit. Tiny Automated Sensors Could Help Map Disaster Areas ![]() A train has derailed at the edge of a city, spreading toxic chemicals and fumes over a wide area. Before rescue and decontamination workers can enter the danger zone, they need more information: How widespread is the contamination? Where are the hotspots? Where and how are toxic gases moving? NOAA Reports Methane Levels Stablizing ![]() One of the atmosphere's most potent greenhouse gases, methane, may now have leveled off, according to a study by NOAA researchers and National Institute for Space Research in the Netherlands. Scientists aren't sure yet if this "leveling off" is just a temporary pause in two centuries of increase or a new state of equilibrium. A Mostly Quiet Pacific ![]() Some climate forecast models indicate there is an above average chance that there could be a weak to borderline El Ni�o by the end of November 2003. However, the trade winds, blowing from east to west across the equatorial Pacific Ocean, remain strong. |
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