The World Meteorological Organization’s State of the Climate in Asia 2024 report warns that the region is warming nearly twice as fast as the global average, driving more extreme weather and posing serious threats to lives, ecosystems, and economies. In 2024, Asia experienced its warmest or second warmest year on …
On Board Sagar Nidhi: It's an acquisition that would make India's deep-sea research scale new heights and the grit of scientists from National Institute of Ocean Technology (NIOT) indicates they are raring to put the Rs 232-crore
GREETING: Union Minister of State for Science and Technology and Ocean Development Kapil Sibal with Chief Minister M. Karunanidhi at his residence in Chennai on Monday. Minister of State for Science and Technology and Ocean Development Kapil Sibal called on Chief Minister M. Karunanidhi at his Gopalapuram residence to seek …
Scientists Are Building First Worldwide Portrait Of Human Impact That Has Left Just 4% Of The Seas Pristine In 1980, after college, I joined the crew of a sailboat partway through a circumnavigation of the globe. Becalmed and roasting one day during a 21-day crossing of the western Indian Ocean, …
Human activities are affecting every square mile of the world's oceans, according to a study by a team of American, British and Canadian researchers who mapped the severity of the effects from pole to pole. The analysis of 17 global data sets, led by Benjamin S. Halpern of the National …
One million tons of atmospheric carbon dioxide are dissolved into the oceans every hour, a process that helps maintain the Earth's delicate carbon balance. But CO2 also makes seawater more acidic, and too much of it can wreak havoc on a marine species.
Seabirds are sensitive indicators of changes in marine ecosystems and might integrate and/or amplify the effects of climate forcing on lower levels in food chains. Current knowledge on the impact of climate changes on penguins is primarily based on Antarctic birds identified by using flipper bands.
In one of the most comprehensive looks yet at the oceans, researchers say that humans have "strongly' fouled 41 per cent of the high seas with everything from storm water runoff to shipping waste and that only small polar regions are still untouched. "Almost half of the oceans are in …
The waters around Sri Lanka are among the most heavily damaged and polluted ocean regions in the world, a study has revealed. The research by a team of American, British and Canadian researchers was published in yesterday's edition of Science. Activities like water and air pollution, overfishing, commercial shipping or …
Judging the effect of climate change on ocean currents could take longer than we thought. The circulation of warm water in the North Atlantic is suspected to be slowing, and the worry is that global warming is to blame.
The management and conservation of the world's oceans require synthesis of spatial data on the distribution and intensity of human activities and the overlap of their impacts on marine ecosystems.
Climate change is presenting a further and wide-ranging challenge with new and emerging threats to the sustainability and productivity of a key economic and environmental resource. This report attempts to focus the numerous impacts on the marine environment in order to assess how multiple stresses including climate change might shape …
The Turonian (93.5 to 89.3 million years ago) was one of the warmest periods of the Phanerozoic eon. It has been argued that there may have been several stages of continental ice growth during the period, reflected in both erosional surfaces and geochemical records associated with possible glaciation-induced sea-level falls.
In a research by paleoceanographer Andre Bornemann of Leipzig University in Germany and his colleagues analyzed apparently unaltered Foraminifera picked from sediment core drilled from Demerara Rise beneath the western equatorial Atlantic. Following a classic technique, the researchers measured oxygen isotopes in the forams' shells. They found a sharp shift …
In 1971, meteorologists Roland Madden and Paul Julian studied weather data from near equatorial Pacific islands. To their surprise, tropospheric winds, pressure and rainfall oscillated with a period of about 40 to 50 days. The oscillation in clouds and precipitation trends to be confined to the tropical Indian and Pacific …
Companies and countries are planning a series of controversial experiments to help determine if seeding the ocean with iron can mitigate global warming.
Data from the satellite-based Special Sensor Microwave Imager (SSM/I) show that the total atmospheric moisture content over oceans has increased by 0.41 kg/m2 per decade since 1988. Results from current climate models indicate that water vapor increases of this magnitude cannot be explained by climate noise alone. In a formal …
Climate models and satellite observations both indicate that the total amount of water in the atmosphere will increase at a rate of 7% per kelvin of surface warming. However, the climate models predict that global precipitation will increase at a much slower rate of 1 to 3% per kelvin. A …
The ocean is becoming an increasingly noisy environment. With a rise in commercial shipping, resource extraction activities, and military-related activities, the underwater ocean environment is a virtual cacophony of noise. While some sources of underwater noise such as wind, waves, and the mating and communication calls of marine mammals are …
