Climate issues often involve economics.  A blog from concerned economists.

“We present the latest independent, nonpartisan, expert information on the real economics of climate change, an emerging body of scholarship that is consistent with the urgency of the problem as seen from a climate science perspective.”

By 2050 or so, the human population is expected to reach nine billion, essentially adding two Chinas to the number of people alive today. Those billions will be seeking food, water and other resources on a planet where, scientists say, humans are already shaping climate and the web of life. In Dot Earth, which recently moved from the news side of The New York Times to the Opinion section, Andrew C. Revkin examines efforts to balance human affairs with the planet’s limits. Conceived in part with support from a John Simon Guggenheim Fellowship, Dot Earth tracks relevant developments from suburbia to Siberia. The blog is an interactive exploration of trends and ideas with readers and experts.

Wide ranging commentary on matters of the environment and energy.

In the short term, the people contributing most to climate change are least affected, which raises important ethical issues. Many of these are addressed through this Penn State climate ethics blog.

Their motto/vision/mission is "climate science from climate scientists", and what you read is what you get. Definitely high-level discourse, but you can be pretty sure that shoddy thinking will get called out and substantiated information will prevail.

“Scientific skepticism is healthy. Scientists should always challenge themselves to expand their knowledge and improve their understanding. Yet this isn’t what happens in global warming skepticism. Skeptics vigorously criticize any evidence that supports man-made global warming and yet uncritically embrace any argument, op-ed piece, blog or study that refutes global warming. So this website gets skeptical about global warming skepticism. Do their arguments have any scientific basis? What does the peer reviewed scientific literature say?” (Skeptical Science)

The New York Times Green blog explores energy and the environment, tracking the high-stakes pursuit of a greener globe in a dialogue with experts. How are climate change, scarcer resources, population growth and other challenges reshaping society? From science to business to politics  to living, our reporters track the high-stakes pursuit of a greener globe in a dialogue with experts and readers.

“News for your Neurons.” Also following the energy innovations of the US military, as seen in the ETOM program.

"Yale Environment 360 is an online magazine offering opinion, analysis, reporting and debate on global environmental issues. We feature original articles by scientists, journalists, environmentalists, academics, policy makers, and business people, as well as multimedia content and a daily digest of major environmental news."