An idea to push at the next town hall meeting?: In an attempt to prevent bad weather in 2050, let's make it illegal to drive faster than 50mph

Lower maximum motorway speed helps reduce CO2 emissions

Driving at lower speeds is better for the climate. In a pilot study CE Delft has estimated the potential CO2 savings arising in various scenarios with tighter motorway speed limits. Lowering the speed limit for cars to 80 km/h [about 50 mph] can reduce transport CO2 emissions on highways by 30% in the longer term.