On the margins of the UN conference on climate change in Paris, Elon Musk was at the Pantheon-Sorbonne University yesterday for a talk about what can be done to curb CO2 emissions, which he followed with a Q&A with students.

The main point Musk was trying to make during the talk was that the fundamental problem with carbon emission is that companies are currently incentivized to use fossil fuels rather than sustainable energy. He argued that to end the incentives, you need to attach a price to carbon emissions, and the best way to that is to introduce a carbon tax. expand full story