Gloomy news on CO2

The Guardian had a story recently drawing on UK Met Office sources about CO2 levels rising to new levels following the recent El Niño event.

The article says:

“The UN’s Intergovernmental Panel on Climate Change (IPCC) says that CO2 concentrations must be stabilised at 450ppm to have a fair chance of avoiding global warming above 2C, which could carry catastrophic consequences. Doing that that will require a 40-70% emissions cut by 2050, compared to 2010 levels, and zero emissions by the end of the century. However, despite the Paris agreement last December and a boost in renewable energy that has at least temporarily checked the growth in global emissions, the world is on track to substantially overshoot the target.

There are some nice graphics that will be useful for teaching purposes.