Energy

Now in its seventh edition, Economics of the Environment serves as a valuable supplement to environmental economics text books and as a stand-alone reference book of key, up-to-date readings from the field. Edited by Robert N. Stavins, the book covers the core areas of environmental economics courses as taught around the world; and the included authors are the top scholars in the field. Overall, more than half of the chapters are new to this edition while the rest have remained seminal works.

Iran has been a critical player in the Syrian war since 2011, crafting a complex foreign policy and military strategy to preserve its Syrian ally. What have been the drivers of Iranian decision-making in this conflict? And how has Iranian strategy evolved over the course of the war? This article argues that the logic of deterrence has been fundamental not just for shaping the contours of Iran–Syria relations since the Islamic Revolution of 1979, but also for determining the overall trajectory of Iranian strategy in the Syrian war. The authors outline Iran's decision-making calculus and divide the country's strategy on Syria after the Arab Spring into four primary phases: 1) a ‘Basij’ strategy to establish local militias in Syria; 2) a regionalization strategy to incorporate transnational fighters and militias in the war effort; 3) an internationalization strategy to incorporate Russia and balance the United States; and 4) a post-ISIS deterrence strategy to balance against the United States, Turkey and Israel. Iran's Syria strategy progressively escalated in response to the possible defeat of its ally and the deterioration of its forward deterrence capacities against the United States and Israel. Today, the potential for direct inter-state conflict is rising as proxy warfare declines and Iran attempts to maintain the credibility of its forward deterrence.

Trump administration claims of progress in talks with the Taliban have sparked fears even among the president's allies that his impatience with the war in Afghanistan will lead him to withdraw troops too soon, leaving the country at risk of returning to the same volatile condition that prompted the invasion in the first place.

Iran is primarily concerned with preserving Syria’s prominent role in the Axis of Resistance and its overarching goal of securing its regional deterrence. Accordingly, the collapse of Damascus was intolerable because it would have negatively affected Iran and its allies in the region. This includes securing supply routes to Lebanon; enhancing the deterrence capabilities and operational experience of the Axis of Resistance against Israel and the United States, especially with Trump’s renewed hostility; and balancing Turkey in northern Syria. In addition, preserving Syria’s significant position within the Axis of Resistance serves to showcase Iran’s effectiveness in supporting allies and in its leadership role in the axis.

Both energy production and consumption can simultaneously affect regional air quality, local water stress and the global climate. Identifying the air quality–carbon–water interactions due to both energy sources and end-uses is important for capturing potential co-benefits while avoiding unintended consequences when designing sustainable energy transition pathways. The authors examine the air quality–carbon–water interdependencies of China's six major natural gas sources and three end-use gas-for-coal substitution strategies in 2020.

The Belfer Center’s Environment and Natural Resources Program and the Center for Science, Technology, and Education Policy at Tsinghua University held the fifth annual Tsinghua-Harvard Workshop on Low-Carbon Development and Public Policy. This event brought together leading experts on climate and energy from academic, business, and government communities in both the United States and China. This year’s workshop focused on electricity systems and renewable energy penetration.

Having been targeted indirectly by the “leading from behind” policy under President Obama, Iran is now faced with a more organized US effort under Trump to establish a regional setting — an "Arab NATO," the Middle East Strategic Alliance (MESA) — that is supposed to “push back” against Iran. Against this backdrop, however, Iran does not seem worried about US efforts to create MESA. In fact, Washington’s new anti-Iran campaign in the Middle East and beyond is interpreted as falling within the “milking logic” of the Trump administration.

The changing carbon content of coal consumed in China between 2002 and 2012 is quantified using information from the power sector. The carbon content decreased by 7.7% over this interval, the decrease particularly pronounced between 2007 and 2009. Inferences with respect to the changing carbon content of coal and the oxidation rate for its consumption, combined with the recent information on coal use in China, are employed to evaluate the trend in emissions of CO2. Emissions are estimated to have increased by 158% between 2002 and 2012, from 3.9 Gt y-1 to 9.2 Gt y-1.