He is still relatively popular with Republicans, who are famously skeptical of climate change and dismissive of green energy. If he was really an environmentali

He is still relatively popular with Republicans, who are famously skeptical of climate change and dismissive of green energy. If he was really an environmentalist he would be making some effort to reach out and persuade them to take these subjects seriously. That is table stakes - being the voice of reason would cost him absolutely nothing and could open the door for more people within the American right to come out in favour of green policies > ... and are now having to decide between whether to put food on the table or fuel in their tank? And if either side cared about this then they'd be advancing policies to improve public transport so Americans weren't so car-dependent, or doing any number of things to ease the pressure on lower-income households' budgets (increase minimum wage, make healthcare free, tackle the student debt crisis or introduce paid parental leave for starters)