Search results
Results from the WOW.Com Content Network
Original flag flown by the 'Discovery', stored at the Royal Museums Greenwich.. In 1929, members of the British Australian and New Zealand Antarctic Research Expedition on RRS Discovery used white cotton sheeting to improvise a courtesy ensign (a flag used as a token of respect by vessels while in foreign waters) for a continent without a flag of its own.
According to the flag's promoters, it signifies: "Horizontal stripes of navy and white represent the long days and nights at Antarctica's extreme latitude. In the center, a lone white peak erupts from a field of snow and ice, echoing those of the bergs, mountains, and pressure ridges that define the Antarctic horizon.
Antarctic surface ice layer temperature trends between 1981 and 2007, based on thermal infrared observations made by a series of NOAA satellite sensors.. Climate change caused by greenhouse gas emissions from human activities occurs everywhere on Earth, and while Antarctica is less vulnerable to it than any other continent, [1] climate change in Antarctica has been observed.
Antarctica’s vast expanse of sea ice regulates Earth’s temperature, as the white surface reflects the Sun’s heat back into the atmosphere. Record low sea-ice levels around Antarctica ...
The climate of Antarctica is the coldest on Earth. The continent is also extremely dry (it is a desert [ 1 ] ), averaging 166 mm (6.5 in) of precipitation per year. Snow rarely melts on most parts of the continent, and, after being compressed, becomes the glacier ice that makes up the ice sheet .
Evidence from a 2,000-foot-long ice core shows rapid past melting — a stark warning for potential sea level rise as temperatures soar
[2]: 16 This is the result of human induced factors such as increased nutrient inputs (nutrient pollution) and climate change (in particular the warming of water temperatures). [2]: 16 The parameters that affect the formation of HABs are ocean warming, marine heatwaves, oxygen loss, eutrophication and water pollution.
Climate change in Antarctica, 2023–2024 El Niño event The 2024 Antarctica heat wave refers to a prolonged and significant mid- winter increase in Antarctic temperatures compared to prior winters, causing several regions of Antarctica to reach temperatures 10 °C (18.0 °F) above normal in July 2024, up to a 28 °C (50.4 °F) increase above ...