Dossier
food web
Coverage of food web in the Nexus archive.
- Arctic Ocean passed a tipping point and scientists say it may never recover
The Arctic Ocean may have crossed a dangerous tipping point due to rapid sea ice disappearance, triggering a chemical shift that reduces nitrate levels. This decline in nitrate threatens Arctic plankton, which could disrupt the entire food web, impacting fish, seabirds, whales, and polar ecosystems.