This is the 33rd issuance of the annual assessment now known as State of the Climate, published in the Bulletin since 1996. As a supplement to the Bulletin, its foremost function is to document the status and trajectory of many components of the climate system. However, as a series, the …
One of the most dramatic perturbations to the Earth system during the past 100 million years was the rapid onset of Antarctic glaciation near the Eocene/Oligocene epoch boundary (34 million years ago). This climate transition was accompanied3 by a deepening of the calcite compensation depth
Dust plays a critical role in Earth's climate system and serves as a natural source of iron and other micronutrients to remote regions of the ocean. We have generated records of dust deposition over the past 500,000 years at three sites spanning the breadth of the equatorial Pacific Ocean. Equatorial …
the Antarctic ice cap is melting fast. The melt is attributed mainly to global warming. Now there is evidence of a volcano beneath the Antarctic ice sheet. Scientists say it would also be contributing to the melt. The volcano erupted more than 2,000 years ago, and the area where the …
Increased carbon dioxide in the Earth's atmosphere also could worsen air pollution worldwide and lead to the deaths of up to 22,000 people a year, a new study shows. Rising carbon dioxide (CO2) levels from burning fossil fuels have been linked to sea-level changes, snowmelt, disease, heat stress, severe weather, …
British scientists in Antarctica have found evidence of glaciers the size of Texas surging towards the ocean, BBC reported. If the trend continues, they say, it could lead to a significant rise in global sea level. The new evidence comes from a group of glaciers in a remote and seldom …
Sydney: Scientists studying Antarctic waters have filmed and captured giant sea creatures, like sea spiders the size of dinner plates and jelly fish with six-m eter-long tentacles. A fleet of three Antarctic marine research ships returned to Australia this week ending a summer expedition to the Southern Ocean where they …
Scientists gather mysterious creatures from icy Antarctic waters Organisms that are stalk-like in structure and resemble glass tulips, spotted in Antarctic waters in January, among others. SYDNEY: Scientists investigating the icy waters of Antarctica said on Tuesday they had collected mysterious creatures including giant sea spiders and huge worms in …
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.
When it comes to Antarctica's disintegrating ice shelves, climate change often gets fingered as the cause. But it turns out global warming was not the only culprit behind the continent's biggest ice break-up in recent years.
Antarctica is losing ice much faster than thought, say scientists who have built the most complete picture of Antarctica's glaciers showing exactly how fast the ice sheets are cracking. The mass of ice falling into the ocean has increased by 75 per cent over 10 years, with the biggest losses …
One of the emblems of the Antarctic, the king penguin, could be driven to extinction by climate change, a French study warns. In a long-term investigation on the penguins' main breeding grounds, investigators found that a tiny warming of the Southern Ocean by the El Nino effect caused a massive …
Following intense pressure from the International Whaling Commission (iwc), Japan has dropped plans to hunt humpback whales during this year's annual whaling expedition, which is underway in the Antarctic Ocean. In November 2007, Japan despatched its whaling fleet to the Antarctic in the first major hunt of humpback whales since …
Antarctica is the most unspoiled continent on Earth - and fast becoming a tourist hotspot. It has been 50 years since the first cruise ship visited with 200 passengers, but now 30,000 tourists go each year. Veteran polar researcher and zoologist Bernard Stonehouse has seen for himself how Antarctica has …
In their policy forum ("The limits of consensus," 14 September 2007, P. 1505), M. Oppenheimer et al, make several misleading statements. They suggest that a premature drive for consensus led Working Group I to understate the risk of large future sea-level rise in the Intergovernmental Panel on Climate Change (IPCC) …
This first true-colour highly-detailed map of Antarctica offers a nearly cloudless and most geographically accurate view of the continent's frozen landscape. Built from satellite images taken between 1999 and 2001, this mosaic map will help researchers plan better scientific expeditions to the remote continent. The map can be viewed at …
india has thin land roots. That's why it moved about five times faster and further away than other landmasses when it broke apart from its mother supercontinent
The uk plans to claim sovereign rights over a million square kilometres of the remote seabed off Antarctica. The move is believed to be a prelude for seeking exploration rights over potential hydrocarbon and mineral deposits around the South Pole. The claim would be in defiance of the spirit of …
The two-week long 30th Antarctic Treaty Consultative Meeting concluded on May 11 in New Delhi. Among other resolutions, India's proposal to set up its third base station was accepted. U R Rao, chairman of the meeting, talks to Archita Bhatta on the resolutions and measures agreed upon to save Antarctica's …
In Antarctica's Ross Sea, a fishing boat has caught what is probably the world's biggest known colossal squid. Heavier than even giant squids, this colossal squid (Mesonychoteuthis hamiltoni) weighed in at 450 kg. It got entangled while feeding on Patagonian toothfish. The deep-sea species was first discovered in 1925, though …
