— Climate sensitivity to CO2 more limited than extreme projections — A new study suggests that the rate of global warming from doubling of atmospheric carbon dioxide may be less than the most dire estimates of some previous studies - and, in fact, may…
— Saving Da Vinci's Last Supper from air pollution — Having survived long centuries, political upheaval, and even bombings during World War II, Leonardo Da Vinci's masterpiece Last Supper now faces the risk of damage from air pollution…
— After 25 years, sustainability is a growing science that's here to stay — Sustainability has not only become a science in the past 25 years, but it is one that continues to be fast-growing with widespread international collaboration, broad disciplinary composition…
— Markets drive conservation in Central Africa — Certification has shown that commercial forestry can co-exist with conservation objectives in the Congo Basin, according to conclusions reached at an international seminar 'Forest management…
— Great Plains river basins threatened by pumping of aquifers — Suitable habitat for native fishes in many Great Plains streams has been significantly reduced by the pumping of groundwater from the High Plains aquifer - and scientists analysing…
— Rivers may aid climate control in cities — Speaking at the URSULA (Urban River Corridors and Sustainable Living Agendas) Conference, in Sheffield, Dr Abigail Hathway, of the University of Sheffield, will demonstrate how rivers…
— Vultures dying at alarming rate — Vultures in South Asia were on the brink of extinction until Lindsay Oaks and Richard Watson, from The Peregrine Fund in the US, undertook observational and forensic studies to find…
— Predicting future threats for global amphibian biodiversity — Amphibian populations are declining worldwide, and their declines far exceed those of other animal groups: more than 30% of all species are listed as threatened according to the Red…
— Study shows deforestation causes cooling — Deforestation, considered by scientists to contribute significantly to global warming, has been shown by a Yale-led team to actually cool the local climate in northern latitudes, according…
Huge post-tropical Hurricane Igor drenched Newfoundland, Canada
Hurricane Igor may have transitioned into a post-tropical hurricane late yesterday, but when he approached Newfoundland, Canada and merged with an area of low pressure it resulted in heavy rainfall throughout the region. NASA satellites captured Igor's northern march toward the Labrador Sea yesterday.
NASA's Terra and Aqua satellites captured visible and infrared images of Hurricane Igor yesterday as he brought heavy rainfall into northeastern Canada. A visible image of Hurricane Igor over Newfoundland, Canada was captured by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA's Terra satellite on Sept. 21 at 14:15 UTC (10:15 a.m. EDT). At that time, Igor had re-strengthened and an eye appeared on the visible imagery.
One and a half hours later, at 1553 UTC (11:53 a.m. EDT), NASA's Aqua satellite captured an infrared image of Hurricane Igor's cold thunderstorms that extended from Labrador, Canada eastward over southern Greenland. Igor was moving northward toward into the Labrador Sea toward Labrador and Baffin Island.
At 5 p.m. EDT on Sept. 21, Igor completed its post-tropical transition and its core went from a warm core, tropical system to a cold core system. At that time, he was 125 miles north-northeast of St. Johns, Newfoundland, Canada near 49.3 North and 51.7 West. Igor still had sustained hurricane-force winds of 80 mph although they are expected to weaken today, Sept. 22. Igor's minimum central pressure was 950 millibars, and he was moving north-northeast near a super-speedy 39 mph!
As Igor moved north his circulation continued increase. By 5 p.m. EDT on Sept. 21, tropical-storm force winds extended outward up to 520 miles from its centre making the system over 1,000 miles wide!
Environment Canada noted that Hurricane Igor passed just south and east of Newfoundland on Tuesday, Sept. 21 and brought heavy rain and strong winds. Heavy rainfall extended far north and west of Igor's centre as it neared Newfoundland, and hurricane-force winds were reported even into the evening.
A trough of low pressure (an elongated area of low pressure) that had passed over Newfoundland the day before (Monday) Igor arrived was still in the vicinity and interacted with the hurricane. The trough took moisture and energy from Igor and caused more heavy rainfall over the region. There were reports of extensive flooding, power outages and wind damage throughout the eastern half of Newfoundland over the last two days. Igor is one storm that the Atlantic will not miss.
Or subscribe for our Newsletter, a free e-mail publication. It is published practically every day.
Carbon capture has a sparkling future
Bioremediation to keep atrazine from waterways
Keeping cool using the summer heat
New data show much of Antarctica is warming more than previously thought