Environment & Climate Change

The Salata Institute for Climate and Sustainability at Harvard University launched today a major research and outreach initiative to reduce global methane emissions. The initiative seeks meaningful and sustained progress in global methane-emissions reductions through research and effective engagement with government policymakers — and with key stakeholders in business, nongovernmental organizations, and international institutions.

The geopolitical implications of solar displacing oil as the world’s major source of energy are enormous. Why has the Middle East been a central arena in the “great game” for the past century? Because countries there have been the major suppliers of the oil and gas that powered 20th-century economies. If, over the next decade, photovoltaic cells that capture energy from the sun were to replace a substantial part of the demand for oil and gas, who will the biggest losers be? And even more consequentially: who will be the biggest winner?

ColdHubs, an innovative Nigerian agricultural enterprise that uses solar-powered refrigerated storage units to keep food from spoiling, is slowly but surely expanding to nearby West African countries. But it faces big challenges to scale up and finance its operations, company founder and CEO Nnaemeka Ikegwuonu told a Harvard Kennedy School audience celebrating the 2022 Roy Award winner.

In an essay for Harvard Kennedy School Magazine, Henry Lee argues the policies China is pursuing to wean itself off reliance on fossil fuels may also benefit its quest for greater energy security.

In late 2017, Mexico made headlines as Italian company Enel bid what was then a world-record low price for renewable energy in the country’s third such energy auction. This development was possible due to the historical and sweeping energy reforms passed with broad support in Mexico in 2013. Then-President Enrique Peña Nieto had succeeded where previous Mexican presidents had failed, reversing decades of resource nationalism and overhauling the energy sector through constitutional reforms that gave the private sector a larger role and advantaged renewable energy in Mexico’s economy. The 2017 auction seemed to indicate Mexico’s bright future not only as a conventional oil producer, but also as a clean energy power.

How can China make good on its pledge to reach carbon neutrality by 2060? In Foundations for a Low-Carbon Energy System in China, a team of experts from China and the United States explains how China's near-term climate and energy policies can affect long-term decarbonization pathways beyond 2030, building the foundations for a smoother and less costly national energy transformation.

An extensive canal irrigation network in South Asia has developed over the past 170 years that consists of thousands of kilometers of constructed channels and distributaries. These canals cut across many energy-poor regions along their paths. In India, this canal network provides a unique opportunity for renewable energy generation that is yet to be realized.

Joseph Aldy describes the challenge of reforming fossil fuel subsidies, given uncertainty about how much subsidies actually cost governments and given provisions in the US tax code that privilege fossil fuels over renewable energy sources. Aldy also elaborates on some policies that the Biden administration—which has committed to removing fossil fuel subsidies—could target as policymakers develop infrastructure legislation.

China recently launched the world’s largest emissions trading market, but it is just one component of the nation’s ambitious efforts to curb the rise in greenhouse-gas emissions. That was the message delivered on Thursday (July 22) by Carnegie Mellon University Associate Professor Valerie Karplus during a Virtual Forum hosted by the Harvard Project on Climate Agreements (HPCA) and moderated by Robert Stavins, HPCA Director and A.J. Meyer Professor of Energy and Economic Development.

Guangdong Province ranks first in economic output among China’s provinces and will play a major role in achieving China’s national climate-change goals. This paper examines the progress of Guangdong Province’s carbon dioxide emissions trading system (ETS) in reducing emissions; design features of the system; challenges it faces with regard to further development; and its relationship to China’s new national ETS.