Sea ice algae could help estimate climate change over the years
2021年1月14日 · Climate Indicators. As sea ice concentration ebbs and flows, so do the algae associated with it, as well as the molecules they leave behind. This can help scientists determine past temperatures - and understand climate change now. A previously problematic molecule turns out to be a reliable proxy for reconstructing sea ice, a new study shows.
What happens if ice in Antarctica continues to melt ... - World ...
2021年10月7日 · Projected sea-level rise will have widespread effects around the world. The Antarctic ice sheet is the largest mass of ice in the world, holding around 60% of the world’s fresh water. If it all melted, global average sea levels would rise by 58 metres. But scientists are grappling with exactly how global warming will affect this great ice sheet.
3 reason why Arctic sea ice is disappearing - and what this means ...
2020年11月3日 · Sea ice around the Artic ocean is worryingly scarce, as global warming caused record temperatures to be reached in Siberia over the summer. The Arctic as a whole was its warmest on record since data started being collected in 1979. The lack of sea ice can cause a vicious cycle of more sea ice melt, as there is less ice to reflect the sun's rays ...
Climate change is warming waters and dissolving icebergs in the …
2019年9月9日 · Since 1979, the Arctic sea ice extent has declined by nearly 12% per decade, with the most pronounced winter reduction in the Svalbard and Barents Sea area. That's not good news for Svalbard's main town, Longyearbyen. With a population of slightly more than 2,000 people, it is the northernmost town on the planet. It is also the fastest-warming.
What is life like in the Southern Ocean? | World Economic Forum
2020年12月11日 · Waves can be more than 20 metres high, and icebergs and sea ice lurk among them. The water temperature is often sub-zero – freshwater freezes at 0℃, but saltwater freezes at closer to -2℃. Although scuba diving is possible, a lot of research on life in the Southern Ocean is done through remote sampling.
How is climate change affecting the Arctic Ocean? | World …
2020年12月9日 · Arctic zooplankton — tiny microscopic animals that eat algae — take part in something called diel vertical migration beneath the ice and in the dead of the polar night. Sea creatures in all the oceans of the world do this, migrating to depth during the day to hide from potential predators in the dark, and surfacing at night to feed.
Climate crisis and human activity is affecting our oceans. Here's …
2023年3月1日 · Oceans are on the frontline of the climate crisis due to the central role they play in regulating the Earth’s climate by absorbing excess heat from emissions. These images from the climate-photography resource Climate Visuals explore how rising temperatures are harming marine life and coastal communities that rely on the oceans.
What is 'snow blood' and how is it linked to climate change?
2022年6月28日 · Image: Unsplash/Erol Ahmed. 'Snow blood' is a type of green algae that accelerates Alpine thaw - and scientists are concerned it's spreading. As rising global temperatures are disproportionately affecting the Alps, scientists are racing to better understand the algae. Research is ongoing but what is certain is that the presence of snow blood ...
These areas of Earth could become uninhabitable by 2500 | World ...
4 天之前 · Here's how sea ice algae could show past and future climate change How will climate change’s warming pattern look in the future? Under low and medium mitigation scenarios—which do not meet the Paris Agreement goal to limit global warming to well below 2 degrees Celsius—vegetation and the best crop-growing areas may move toward the poles.
Discover this week's must-read nature and climate stories | World ...
2024年3月11日 · This article is part of: Centre for Nature and Climate. This weekly round-up contains key nature and climate news from the past week. Top nature and climate stories: Fourth mass bleaching event for coral reefs predicted by NOAA; Arctic could have ice-free summers by 2035; Fossilized remains of the world's oldest-known forest discovered. 1.