Designing Climate Policy
Environmental protection seems to come and go, depending on the whim of the party that gets voted into office. A citizen might wonder, how is climate policy designed, anyway? Is there a method to the madness? New climate policy is developed through an iterative process that blends scientific data, public consultation, and political negotiation to meet long-term net-zero goals. Effective design usually combines “carrots” (tax credits, rebates, etc.) with “sticks” (carbon pricing, fines, etc.) to accelerate the transition. “Fighting climate change requires implementing ambitious carbon reduction policies,” said Thomas Bourany, postdoctoral research scholar of economics at Columbia University. “The free-rider problem is […]
Supply Chains & Climate Risk
Supply chain disruptions during the pandemic made average citizens aware of how vulnerable supply chains are, and how severe the knock-on effects can be. Supply chains continue to be exposed to risk in many ways: geopolitics, labour, and weather, to name a few. In this month alone, floods and atmospheric rivers have caused major disruption of supply chains, such as can be seen in the December flooding in British Columbia’s Fraser Valley and Washington state. As companies continue to manage supply chains in the face of climate change, what are the trade-offs between cost minimization and resilience? What are the […]
Credible Scenarios
What are the best practices for environmental and climate risk management in the financial sector? Are the standard input scenarios actually suitable for financial modeling? Economic scenarios are an essential tool in assessing the financial risks of the ever-changing world. Given that the average global temperature is increasing, and storms are becoming more severe, year over year, those who construct financial models of risk must set up new, realistic scenarios. Estimating gains and losses on portfolios is difficult because of the deep uncertainty of climate impacts, but modelers must start somewhere. “Using relevant scenarios is crucial,” said Irene Monasterolo, Professor […]
Plugging into Progress
Many countries signed on to the 2016 Paris Agreement, but nine years later, how many are actively working toward decarbonization? Watchdog organizations are evaluating the progress made year over year and will encourage the 195 or so signing parties to keep the commitments they made. One such organization is the independent scientific project Climate Action Tracker (CAT), whose main graphic summarizes the goals. On May 21, 2025, the Climate Action Tracker group presented a webinar, “Plugging Into Progress: Evaluating Power Sector Decarbonization,” in which four experts on climate risk discussed the progress, or lack thereof. Louise Jeffrey began the session. […]
The Growing Protection Gap
According to a CoreLogic survey, roughly 35 million homes, or nearly a third of the nation’s housing stock, are at “high risk” of a natural disaster. How much are U.S. households willing to pay for insurance? Will this give adequate coverage? And what do changes in demand imply for the future of insurance markets? “Climate losses are increasing, with homeowners insurance premiums rising in tandem,” said Pari Sastry, Assistant Professor of Finance at Columbia Business School, “and there is widespread concern that rising premiums are making insurance unaffordable.” Parinitha Sastry was speaking at a webinar on May 15, 2025, presenting […]
Nature Risk… Climate Risk
Nature risk, or the loss of natural assets, affects humans in a wide range of ways, but it is poorly understood, and its economic impact is not adequately measured. Yet it is gaining prominence during a time of concern about climate risk. The natural world helps mitigate climate change because it provides many natural sinks that absorb carbon dioxide, such as mangrove swamps. “Nature is critical for us to get to net zero,” said Jo Paisley, president of GARP Risk Institute, referring to a fundamental goal of the 2016 Paris Agreement. “And climate change is one of the drivers of […]
What is the Cost of Biodiversity?
Biologists have long known that biodiversity is the key to nature’s resilience. In a biodiverse world, if the environment changes and some organisms can no longer thrive, others can take their place and fulfil functions that are essential to the species’ survival, and ultimately, human survival. Even the lowliest animals play significant roles, such as insects that pollinate—and a third of the food we eat depends crucially on insect pollinators. In addition to its intrinsic value, biodiversity underpins ecosystem services, providing the backbone of the global economy. Biodiversity loss, or the reduction in the genetic diversity of life forms, can […]
Energy transitions
As the low-carbon energy transition takes hold, transition risk becomes a hot topic. Various uncertainties, mismatches, and potential obstacles emerge, threatening to delay the changeover. For example, in 2021, the U.K. had to restart coal-fired power plants due to low wind power. Two major transitions in electricity generation are underway. The cost of generating electricity with natural gas has dropped—and the costs of solar panels and energy storage have also dropped. Both are leading to new vistas in power generation. However, “over-investment in CCNG may affect the transition to renewables,” said Gautam Gowisankaram, professor of economics at Columbia University and […]
Distributional consequences
Climate change marches on. To prepare for worse storms, droughts, and wildfires, the infrastructure must be improved. Governments have different ways to handle the costs of adapting to climate change. How will these additional costs be borne? “Transition to a carbon-neutral economy is at the top of the policy agenda around the globe,” said Moritz Kuhn, professor of economics at the University of Mannheim. Private households account for about two-thirds of carbon emissions. “Governments can introduce policies to speed up the adoption of green technologies,” he said, but the heterogeneity of consumption and carbon emissions could present problems. These will […]
Tackling Two Problems
Climate change and loss of biodiversity are often treated separately – in science, policy, and even risk management. But as the scientists and policymakers began sharing thoughts on these global crises, “we saw we have a bunch of things in common, such as response options and interventions,” said Professor Pete Smith, Professor of Soils and Global Change, University of Aberdeen. “We need to consider climate change and biodiversity from the very outset of planning solutions.” On November 7, 2024, he was interviewed by Jo Paisley, President, GARP Risk Institute.The Global Association of Risk Professionals (GARP) provides a series of podcasts […]