“Over the past several months, extreme weather and climate events seemed to have become the norm rather than the exception,” writes Kelly Levin for the World Resources Institute (WRI). Indeed, records have been broken around the world as countries experience unprecedented heat, drought, flooding, or other types of severe weather. And people are starting to take notice. A number of recent stories try to make sense of this wild weather and what, if anything, it has to do with climate change.

It’s not often that a change in accounting rules could reduce the probability of war. But that’s exactly what happened at the U.S. Securities and Exchange Commission (SEC) last month.

The challenges for cities in the coming century will be many, but accounting for swelling numbers of new residents – due to more open avenues of communication and flows of goods, economic opportunity, population growth, and potential climate change-induced displacement – is perhaps the biggest.

Since its inception, there’s been a great deal of prognostication about the role and goals of the U.S. military’s newest regional command, AFRICOM. The smallest of the six regional commands, in terms of staff and budget, its objectives have included traditional roles like building local military capacities, confronting transnational threats (terrorism, weapons of mass destruction, small arms, drugs, etc.), and helping to mitigate violent conflicts, but also more development-oriented goals, like fighting HIV/AIDs and malaria, “strengthening democratic principles,” and “fostering the conditions that lead to a peaceful, stable, and economically strong Africa.”

Specifically attributing a particular weather event to climate change has been difficult – as one famous analogy goes, it’s like determining which of Mark McGwire’s home runs were because of steroids and which weren’t. But climate attribution science is slowly becoming more accurate and accepted. In “Explaining Extreme Events of 2011 From a Climate Perspective,” a new study appearing in July’s Bulletin of the American Meteorological Society, editors Thomas C. Peterson, Peter A. Stott, and Stephanie Herring provide a review of six extreme weather events from last year and offer “some illustrations of a range of possible methodological approaches” to the process of attribution. Among their conclusions, the editors note that, due to climate change, the extreme heat and drought that suffocated Texas in 2011 was 20 times more likely to occur than 40 years earlier. However, the devastating floods that swept across Thailand last year are blamed on a number of other non-climatic factors.

In the “first spatially explicit comparison of groundwater use, availability, and environmental flow for aquifers globally,” a new article in Nature finds that the “size of the global groundwater footprint is currently about 3.5 times the actual area of aquifers.” An aquifer’s footprint is the theoretical size it would need to be to sustainably support use at its current rate, so groundwater footprints being much larger than their corresponding aquifers is a sign of overuse.

Climate change “has been thought of in many quarters as something that affects folks ‘over there,’ and not as much domestically, and I think that’s a mistake,” said ECSP’s Geoff Dabelko in a recent podcast with the Zurich-based International Relations and Security Network. “I think folks are coming to a realization that there are very high economic, political, and ultimately security stakes for the United States.”

The original version of this article, by Michael Kugelman, appeared on Dawn.

There’s been much discussion lately about the “water kit,” a mysterious contraption that a purported Pakistani engineer insists will enable cars to use water as fuel.

Yet missing from this debate is a basic but critical fact: Pakistan is dangerously water-deficient. Per capita availability hovers just above the scarcity threshold of 1,000 cubic meters. In several decades, availability could plummet to 550 cubic meters.