Climate change is overhauling marine nutrient cycles, UC Irvine scientists say
Peer-Reviewed Publication
Updates every hour. Last Updated: 30-Apr-2025 18:08 ET (30-Apr-2025 22:08 GMT/UTC)
Computer models reveal how human-driven climate change will dramatically overhaul critical nutrient cycles in the ocean. In the Proceedings of the National Academy of Sciences, University of California, Irvine researchers report evidence that marine nutrient cycles – essential for sustaining ocean ecosystems – are changing in unexpected ways as the planet continues to warm.
New assessment warns area the size of the USA will become too hot during extreme heat events for even healthy young humans to maintain a safe body temperature if we hit 2°C above preindustrial levels.
For those aged over 60, the same 2°C rise would see more than a third of the planet’s land mass cross this critical ‘overheating’ threshold
A new study has estimated it would cost $15.6 billion per year for 30 years to prevent extinction for 99 of Australia’s priority species. The research, led by Griffith University’s Centre for Planetary Health and Food Security with WWF-Australia and the University of Queensland, highlights the urgent need for increased funding to combat threats such as habitat destruction, invasive species and climate change.
Caio Vieira, assistant professor of soybean breeding and a researcher for the Arkansas Agricultural Experiment Station, tested 31 soybean genotypes over two growing seasons to see how they would respond to four-day flooding in early reproductive stages.
The study found that some genotypes visually classified as “moderately tolerant” to flooding had higher yields than those classified as “tolerant.” Another surprising discovery was that four-day flooding in the early reproductive stage did not significantly alter the soybean seed composition of any of the varieties tested compared to the non-flooded control group.