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ScienceDaily – The Latest Earth and Climate News

  • - Study shows diamonds aren't foreverDiamonds, those precious, sparkling jewels, are known as the hardest materials on Earth. They are a high-pressure form of carbon and found deep in the ground. While diamonds are commonly thought of as hard and stable, carbon from about 100 miles beneath the African plate is being brought to shallower levels where diamond will become unstable. Molten rock (magma) brings the excess carbon towards the surface, and earthquakes open cracks that allow the carbon to be released into the air as carbon dioxide.
  • - Mangrove trees won't survive sea-level rise by 2050 if emissions aren't cutMangrove trees -- valuable coastal ecosystems found in Florida and other warm climates - won't survive sea-level rise by 2050 if greenhouse gas emissions aren't reduced, according to a new study. Using sediment data from the last 10,000 years, an international team estimated the chances of mangrove survival based on rates of sea-level rise.
  • - Vital buffers against climate change are just offshoreA new study finds that about 31 million people worldwide live in coastal regions that are 'highly vulnerable' to future tropical storms and sea-level rise driven by climate change. But in some of those regions, powerful defenses are located just offshore, in the forms of mangroves and coral reefs, key buffers that could help cushion the blow against future tropical storms and rising waters.
  • - The need for conservation of natural springs in drying climateResearchers have described the importance of springs in a drying climate.
  • - Ocean uptake of carbon dioxide could drop as carbon emissions are cutThe ocean is so sensitive to declining greenhouse gas emissions that it immediately responds by taking up less carbon dioxide, says a new study. The authors say we may soon see this play out due to the COVID-19 pandemic lessening global fuel consumption; they predict the ocean could take up less carbon dioxide in 2020 than in 2019.
  • - Rivers help lock carbon from fires into oceans for thousands of yearsThe extent to which rivers transport burned carbon to oceans - where it can be stored for tens of millennia - is revealed in new research. The study calculates how much burned carbon is being flushed out by rivers and locked up in the oceans. Oceans store a surprising amount of carbon from burned vegetation, for example as a result of wildfires and managed burning. The research team describe it as a natural - if unexpected - quirk of the Earth system.