New presentation showing all three main greenhouse gases on one graph.
Carbon dioxide’s post 1990 acceleration is sustained.
Methane post 2007 renewed increase due to planetary feedback emissions sustained.
Nitrous oxide still by far the fastest rising greenhouse gas, the most powerful of the 3 GHGs.
Mauna Loa carbon dioxide and methane have changed little since last month. Methane is still on a rising trend due to post 2007 feedback emissions from the warming planet. Nitrous oxide continues to rise.
More heat is being added to the climate system at an unprecedented rate, which has accelerated over the past decade due to all three GHGs.
Arctic methane continues to rise due to feed back emissions.
Atmospheric GHG concentrations correlate directly with radiative forcing, which shows how the total heat in the climate system increases-a much better indicator than surface temperature increase alone.
Compared to 800,000 year ice core limit, the the total heat in the climate system from heat radiation of the three greenhouse gases is extremely high.
Research suggests there is more heat in the climate system today than the past 15 million years.
The atmospheric greenhouse concentrations show:
- carbon dioxide’s post 2000 increased rate of increase persists,
- methane’s post 2007 renewed increase due to feedback emissions from the warming planet (Arctic and tropical peatlands) persists at the same fast rate, so is not a temporary situation but an emergency in its own right,
- nitrous oxide is for sure increasing the fastest and its post 2000 increased rate of increase persists. As its GWP is nearly 300 times CO2, nitrous oxide is now an extreme danger.