Comments are re-enabled on new posts. [more]

Suggested topic – What online resources do you find most valuable in support of thinking about our common future? Which writers do you follow?

Anything goes. Proposed topic: What next? What comes after the New York City march in pulling together a global grass roots policy consensus? I mean, we need one, don’t we? [more]

Anything goes. Suggested topic: if energy storage prices come down far enough, is carbon-fueled electricity a dead business model?

Anything goes.

Suggested topic: What will the impacts be if a very large El Nino occurs over the next 18 months, as appears increasingly likely? Will the “hiatus” talk end? How will the global conversation change?

Anything goes. Moderation is light.

Suggested topic: how many people can the earth sustainably and comfortably support using existing deployed technology? Answer with a number if you dare. What is the limiting constraint? How does this number change with technologies likely within 50 years? Relevant reading material: How Many People Can the Earth Support? [more]

Suggested Topic: Have you read the IPCC WG II Summary for Policymakers yet? Or are you all focused on whether Nate Silver’s choice of Roger Pielke Jr. as a climate statistician makes any sense?

Anything goes. Moderation is lighter than on other articles.

Anything goes. Moderation is light. Suggested topic:

Pielke and Holdren and Hoerling and Romm, oh my! Resolved: Holdren is not blameless for this mess. Opinions?

Anything goes.

Suggested topics:

How should a person not versed in a controversial subject identify which sources are reliable?

How should the press and the public view peer review as input into their decision making? Would a reinvention of the academic publication infrastructure help?

Anything goes, per usual.

Suggested topics –

pick the climate, energy or sustainability story of the year for 2013!
predict the climate, energy or sustainability story of the year for 2014!

Anything goes, per usual.

Also, we are taking nominations for the Golden Horseshoe Awards for 2014 – We usually like to avoid the noise and focus on the signal, but for the New Year we’d like to send some awards for the biggest and most misleading claims in the climate world. [more]

Anything goes.

Suggested Topic: Conversations about climate and sustainability seem to have a way of making no progress. Issues include definition of terms, overlapping and complex issues, differing values and norms, and sheer confusion about facts. Is there any way to fight back against the confusion?

Speak your mind – anything goes.

Suggested topic this month is the obvious one – what’s your first take on the IPCC WG I report and the reactions to it?

Apparently, the first commercial container ship has nearly traversed the Arctic. It’s a new era in shipping huzzah!

Suggested topic: are ancillary benefits of global warming important enough to include in the cost/benefit calculations?

The promising young scientist Tamsin Edwards has the internet abuzz with her claim that “climate scientists must not advocate particular policies”. Various rebuttals have appeared. Others support her. Conversation has been active on Twitter as well, with Schmidt, Gleick, and Mann among those speaking in opposition. What do you think?