40
The historic U.S. heat wave is rattling climate scientists. Here's what they have to say
(www.sfchronicle.com)
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:

How much each change to the atmosphere has warmed the world:

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.
I wonder if Trump would be able to run again if he lost in 16. His first term really allowed him to consolidate his power. Basically reshape the RNC, make Fox News his personal megaphone, and make all the wealthy donor contacts that fueled the next 6 years.
However it's not like he was a runaway train that first primary. It was a highly contested field that he probably only came out of because there were so many options. So if he never wins that first election, I wonder if he'd have the momentum to go into a second one or if people would view him as a loser. It's hard to say. So much of what we just take as common knowledge about him now was relatively unknown back then.
Would pundits have spent the intervening years just tearing him apart? Would the people he beat in that primary be circling like wolves? With the party brass view him as the reason they lost and try to distance themselves? It's really hard to say.