The most in-depth study conducted on the subject so far points at dangerous developments. It's now getting increasingly clear that climate change is burdening our oceans, that absorb more than 30% of carbon produced on land, the most. This study, carried out at Geomar Helmholtz Centre for Ocean Research in Germany, found that ocean oxygen levels had fallen by 2% in 50 years.
This depletion of oxygen in our oceans in our oceans threatens future fish stocks and risks altering the habitat and behaviour of marine life, reports the Guardian.
You can read more details about this report at https://www.theguardian.com/environment/2017/feb/20/fish-under-threat-oxygen-depletion-oceans-study
Ranjan K Panda
Convenor, Combat Climate Change Network, India
Convenor, Water Initaitives Odisha
Mahanadi River Waterkeeper (Member, Global Waterkeeper Alliance, New York)