During the climate conference in Paris, a group of European countries and North American states committed to a ban on the sale of conventional cars by 2050. They are united in the International Zero Emissions Vehicle Alliance, and the group includes the United Kingdom, Norway and the Netherlands in Europe; Connecticut, Maryland, Massachusetts, Oregon, Rhode Island and Vermont in the U.S.; and Québec in Canada. The aim of their proposal is to cut global vehicle emissions by up to 40 percent and help to put a stop to climate change. The proposal started with the European Commission in 2011, when it started a push to have the amount of conventional petrol and diesel vehicles halved from dense city areas by 2030. We will certainly hear more about the plans from the Zero Emissions Vehicle Alliance in the upcoming months and years.