For the first time since humans have been monitoring, atmospheric concentrations of carbon dioxide have exceeded 410 parts per million averaged across an entire month, a threshold that pushes the planet ever closer to warming beyond levels that scientists and the international community have deemed ‘‘safe.’’
The reading from the Mauna Loa Observatory in Hawaii finds that concentrations of the climate-warming gas averaged above 410 parts per million throughout April. The first time readings crossed 410 at all occurred on April 18, 2017, or just about a year ago.
Earth’s atmosphere just crossed another troubling climate change threshold
(Score: 2, Insightful) by Anonymous Coward on Saturday May 12 2018, @11:41AM
Carbon dioxide isn't a very restrictive bottleneck for plant growth, other nutrients are (you see this where fertiliser wash out takes place). Also, lots of non-food organisms (e.g. pests) might outcompete the food sources.