A zebra can not change it's spots.

I understand that being optimistic in this age is challenging, but I am optimistic nonetheless.

Local and state governments have outrun the federal government. The EPA has served notice that it will enact a rule requiring CO2 reductions by major emitters in the absence of major legislation. But it's a blunt instrument that is a little more difficult to use than a legislative remedy.

The debate's over. The people who dispute the international consensus on global warming are in the same category now with the people who think the moon landing was staged on a movie lot in Arizona.

The 'well-informed citizenry is in danger of becoming the 'well-amused audience'.

For me, the most serious problem is how America became so vulnerable to the assertion of blatant falsehoods that drive policy and are not corrected by the so-called immune system of democracy, a free press and a free democratic discourse.

We're all capable of mistakes, but I do not care to enlighten you on the mistakes we may or may not have made.