It’s so good to see some climate scientists at last starting to speak up about the awful over the top things Extinction Rebellion activists are saying, though I wish more would speak up and speak up more strongly.

Here is a meme that may help with sharing:

Yes XR activists, climate change is a serious issue BUT “Please STOP telling kids they may not grow up”

IPCC author Dr Tamsin Edwards

Background image: Smiling child at school by Shlok Nikhil

This is not a high quality paper, it's riddled with errors. It should never have been on mainstream news or on TV. Those 11,000 scientists are not authors - they are just signatories and one of them is the illustrious professor Micky Mouse of the Micky Mouse Institute of the Blind in Namibia. Of course they removed those names once they were discovered, but this shows how easy it was to add signatures to it.

Climate change is a serious issue but it does no good to promote things like this as if they were on a par with the IPCC reports.

The only section number cite to the IPCC is mistaken, says that it says we need carbon taxes much higher than $15.25 - the actual figure in that section for an example carbon tax together with other measures is $7.

This is running with click bait titles suggesting massively more people are at risk of sea level flooding than before. But it’s just better elevation maps. The sea level rise is the same but more people than they thought are already living below sea level protected by dikes, as for Holland.

It makes no difference at all if the elevation data is already good. Example story to debunk:

• Rising Seas Will Erase More Cities by 2050, New Research Shows

This is mainly due to an increase in their estimate of the number of people currently below sea level (many people already live below sea level not just Netherlands). They estimate that

This is the first day that countries can give their one year notification to leave the Paris agreement. It's no surprise that the US has given notification. But he is not speaking for the city of Pittsburgh, who have taken strong action on climate change for over a decade, and many others in the US are in support of the agreement. Withdrawal is largely symbolic, and won't change anything, as there is no longer central federal support for climate action in the US as is.

Here I debunk an article in the Financial Times - although by the title it is supposedly about myths about green technology and renewables, it actually perfectly highlights most of the scientific and even financial myths about renewables propagated by some economists who claim that green growth is impossible.

I am annotating this article with Hypothes.is - the academic online web commenting tool. You may be able to read my annotations online here:

It’s so good to see some climate scientists at last starting to speak up about the awful over the top things Extinction Rebellion activists are saying, though I wish more would speak up and speak up more strongly.

Rupert Read is a philosophy professor. Don’t watch his video if you are like the children and adults I help who get terrified of climate change.

Yes we do need to act on climate change. But we need to be informed by science. He is surely well grounded in philosophy. However, what he says in the video about climate science is mistaken.