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 …
Scientists are predicting the disappearance of another vast ice shelf in Antarctica by the end of the century that will accelerate rising sea levels. The Filchner-Ronne Ice Shelf fringing the Weddell Sea on the eastern side of Antarctica has so far not seen ice loss from global warming and much …
Of the West Antarctic ice shelves, those in the Amundsen Sea sector have given the most cause for concern. Ocean modelling of the Weddell Sea region, together with a detailed survey of the ice bed morphology, indicates that this region, too, may change soon.
Using satellite laser altimetry, basal melting of ice shelves is determined to be the main driver of Antarctic ice-sheet loss, with changing climate the likely cause.
Says little data available on impact of global warming on these Dharamsala: The Indian Government should create a cadre of glaciologists to study the impact of global warming on Himalayan glaciers. At present little data is available regarding the impact of global warming on the Himalayan glaciers. Sridhar Ananda Krishnan, …
Counting emperor penguins in their icy Antarctic habitat was not easy until researchers used new technology to map the birds from space, and they received a pleasant penguin surprise for their efforts. Using satellite mapping with resolution high enough to distinguish ice shadows from penguin poo, an international team has …
A report by Sam Bateman and Anthony Bergin of the Australian Strategic Policy Institute, Canberra in the Australian daily The Australian, shows panic reaction of Australia as the largest territorial claimant in Antarctica. A quote directly from the report is as follows: ‘China and India’s increasing interest in the Antarctic …
A reconstruction of temperature from proxy records shows that the rise in global mean temperature closely resembled, but slightly lagged, the rise in carbon dioxide concentration during the last period of deglaciation.
A reconstruction of global surface temperature is used to show that deglacial temperature is correlated with and generally lags carbon dioxide concentration, a result that contributes to the explanation of the temperature change that occurred at the end of the most recent ice age.
Planet-warming carbon dioxide emissions - similar to those caused by burning fossil fuels and other human activities now - helped heat the planet and end the last ice age some 11,700 years ago, scientists reported on Wednesday. In a finding that offers a response to those skeptical about human-caused global …
India's third research base in Antarctica is now fully built and has entered a critical testing period. A few scientists are there carrying out minor experiments, but the official launch is set for November, when the main team of scientists will arrive to start their research. Mr Shailesh Nayak, secretary …
The collapse of an ice sheet in Antarctica up to 14,650 years ago might have caused sea levels to rise between 14 and 18 metres, a study showed on Wednesday, data which could help make more accurate climate change predictions. The melting of polar ice could contribute to long-term sea …
Invasive alien species are among the primary causes of biodiversity change globally, with the risks thereof broadly understood for most regions of the world. They are similarly thought to be among the most significant conservation threats to Antarctica, especially as climate change proceeds in the region. However, no comprehensive, continent-wide …
The coldest deep ocean water that flows around Antarctica in the Southern Ocean has been strangely disappearing at a high rate for the past few decades, a new study has revealed. This mass of water is called Antarctic Bottom Water, which is formed in a few distinct locations around Antarctica, …
Contentious observations of Pleistocene shoreline features on the tectonically stable islands of Bermuda and the Bahamas have suggested that sea level about 400,000 years ago was more than 20 metres higher than it is today. Geochronologic and geomorphic evidence indicates that these features formed during interglacial marine isotope stage (MIS) …
The National Centre for Antarctic and Ocean Research (NCAOR) Research Director, Rasik Ravindran, pegs climate change studies as the most significant from the perspective of future. Ice cores recovered from polar ice sheets offer the best possibility of reconstructing past atmospheric compositions. Several ice cores have been drilled by Indian …
The total volume of water that has melted from all of world’s polar ice sheets, ice caps and mountain glaciers over the past decade would repeatedly fill Britain’s largest lake, Windemere, more than 13,000 times, according to one of the most comprehensive studies of Earth’s frozen ‘cryosphere’. Using a unique …
While taking part in a recent climate change expedition to Antarctica, Bangladesh's representative, Environment and Forests Minister Dr Hasan Mahmud, pointed out Bangladesh's vulnerability to climate change. Sharing his experience on the expedition at a press conference in the ministry yesterday, Hasan also said many western policymakers and scientists witnessed …
After more than two decades of drilling in Antarctica, Russian scientists have reached the surface of a gigantic freshwater lake hidden under miles of ice for some 20 million years, a lake that may hold life from the distant past and clues to search for life on other planets. Reaching …
A Russian team has succeeded in drilling through four kilometres (2.5 miles) of ice to the surface of a mythical subglacial Antarctic lake which could hold as yet unknown life forms, reports said Monday. Lake Vostok is the largest subglacial lake in Antarctica and scientists want to study its eco-system …
U.S. scientists using satellite data have established a more accurate figure of the amount of annual sea level rise from melting glaciers and ice caps which should aid studies on how quickly coastal areas may flood as global warming gathers pace. John Wahr of the University of Colorado in Boulder …
