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 …
Atmospheric carbon dioxide concentrations and climate are regulated on geological timescales by the balance between carbon input from volcanic and metamorphic outgassing and its removal by weathering feedbacks; these feedbacks involve the erosion of silicate rocks and organic-carbon-bearing rocks. The integrated effect of these processes is reflected in the calcium …
The Nation Keeps Its Fingers Crossed, Hopes 28% Rain Deficit Will Be Wiped Out In The Slog Overs. If openers fail to score, the middle order is there to save the day. That’s how P Sivananda Pai, India’s leading monsoon forecaster, described the situation after rains failed in June. With …
The vast swirl of plastic waste floating in the North Pacific has grown 100-fold over the last 40 years, according to a research paper published Wednesday. And scientists warned the killer soup of microplastic — particles smaller than five millimetres – threatened to alter the open ocean’s natural environment. In …
The Tōhoku earthquake and tsunami of March 11, 2011, resulted in unprecedented radioactivity releases from the Fukushima Dai-ichi nuclear power plants to the Northwest Pacific Ocean. Results are presented here from an international study of radionuclide contaminants in surface and subsurface waters, as well as in zooplankton and fish, off …
The atmospheric and deep sea reservoirs of carbon dioxide are linked via physical, chemical, and biological processes. The last of these include photosynthesis, particle settling, and organic matter remineralization, and are collectively termed the “biological carbon pump.” Herein, we present results from a 13-y (1992–2004) sediment trap experiment conducted in …
Since the beginning of the Industrial Revolution humans have released ~500 billion metric tons of carbon to the atmosphere through fossil-fuel burning, cement production and land-use changes. About 30% has been taken up by the oceans. The oceanic uptake of carbon dioxide leads to changes in marine carbonate chemistry resulting …
Arctic sea ice at its lowest in 2011, says World Meteorological Organization report. The year 2011 has been the 10th warmest year on record in spite of a strong La Nina, which has a relatively cooling influence. In the event of a La Nina, the sea surface temperature is lower …
More than twenty years ago, a biological regulation of climate was proposed whereby emissions of dimethyl sulphide from oceanic phytoplankton resulted in the formation of aerosol particles that acted as cloud condensation nuclei in the marine boundary layer. In this hypothesis—referred to as CLAW—the increase in cloud condensation nuclei led …
The scientist in Canada got the results from a respected lab and held a news conference. The ice and bait man at a fish processor in Sitka, Alaska, heard the news on Facebook. Vardon Tremain read it in the newspaper while working on his trolling boat docked here in Salmon …
A lethal and highly contagious marine virus has been detected for the first time in wild salmon in the Pacific Northwest, researchers in British Columbia said on Monday, stirring concern that it could spread there, as it has in Chile, Scotland and elsewhere. Farms hit by the virus, infectious salmon …
The Marshall Islands in the Pacific Ocean is to ban shark fishing and trade in shark products throughout its waters, creating a sanctuary roughly eight times the size of the UK. The Marshall Islands archipelago is home to just 68,000 people, with tourism, such as diving, being an important part …
The anthropogenic input of fossil fuel carbon into the atmosphere results in increased carbon dioxide (CO2) into the oceans, a process that lowers seawater pH, decreases alkalinity and can inhibit the production of shell material. Corrosive water has recently been documented in the northeast Pacific, along with a rapid decline …
Where conservation resources are limited and conservation targets are diverse, robust yet flexible priority-setting frameworks are vital. Priority-setting is especially important for geographically widespread species with distinct populations subject to multiple threats that operate on different spatial and temporal scales. Marine turtles are widely distributed and exhibit intra-specific variations in …
Vast deposits of rare earth minerals have been discovered on the seabed of the Pacific Ocean amounting to 1,000 times those on land, media reported on Monday citing a study by Japanese researchers. The deposits are estimated to amount to 100 billion metric tons, the Nikkei business daily said. They …
World demand for rare-earth elements and the metal yttrium—which are crucial for novel electronic equipment and green-energy technologies—is increasing rapidly. Several types of seafloor sediment harbour high concentrations of these elements. However, seafloor sediments have not been regarded as a rare-earth element and yttrium resource, because data on the spatial …
This study investigates changes in the mixed layer depth (MLD) in the North Pacific Ocean in response to global warming and their impact on primary production by comparing outputs from 11 models of the coupled model intercomparison projects phase 3. The MLD in the 21st century decreases in most regions …
Methylmercury cycling in the Pacific Ocean has garnered significant attention in recent years, especially with regard to rising mercury emissions from Asia. Uncertainty exists concerning whether increases in anthropogenic emissions over time may have caused increased mercury bioaccumulation in the biota. To address this, we measured total mercury and, for …
HOW cloudy is it outside? Will it rain? The answers may depend on the level of atmospheric pollution in one’s region. Cloud-forming microscopic particles, called aerosols, absorb and reflect solar radiation. These particles have the ability to modify cloud formation and encourage or suppress precipitation. They can be released from …
Washington: Moses might not have parted the Red Sea, but a strong east wind that blew through the night could have pushed the waters back in the way described in biblical writings and the Quran, US researchers reported. Computer simulations, part of a larger study on how winds affect water, …
