Clean energy

Strange as it may seem, early germ theorists could tell us a lot about today’s attitudes toward climate change. While researching for a new book about the history of emerging infections, I found many similarities between early debates over the existence of microbes and current debates over the existence of global warming. Both controversies reveal the struggles of perceiving an unseen threat. Both reveal the influence of economic interests that benefit from the status quo. But most importantly, both reveal how people with different beliefs and interests can still agree on key policies and practices for tackling a global problem. What you can’t see might hurt you Seeing is believing, and until the mid-19th century, it was very difficult to see the tiny organisms responsible for our so-called “fever” diseases. Although the indirect evidence was compelling, many people remained skeptical of “animalcules” – as microorganisms were once cal...

“Hey Rupam, open the door. Take this fish,” a woman yelled from outside. I was sitting in the kitchen at my friend Rupam’s house in rural northeast India. It was the heart of monsoon season, and rain had been falling since morning. The woman must have been shouting because the noise of the rain on the tin roof muted everything else. The aunty who lived next door stood outside with a large bowl of Boriala fish. Her husband had gone fishing on the Subansiri River, which flows next to the village, and he had fished all evening. “My husband cannot stay indoors in this weather,” she said in Assamese, the local language. “You can catch a lot of fish during this time.” The monsoon season has long brought a bounty of fish from May to September for people living downstream. However, this is likely to change once the Subansiri Lower Hydroelectric Project, one of the largest hydropower dams in India, is completed upstream. Expected to be fully op...

America’s first large-scale offshore wind farms began sending power to the Northeast in early 2024, but a wave of wind farm project cancellations and rising costs have left many people with doubts about the industry’s future in the U.S. Several big hitters, including Ørsted, Equinor, BP and Avangrid, have canceled contracts or sought to renegotiate them in recent months. Pulling out meant the companies faced cancellation penalties ranging from US$16 million to several hundred million dollars per project. It also resulted in Siemens Energy, the world’s largest maker of offshore wind turbines, anticipating financial losses in 2024 of around $2.2 billion. Altogether, projects that had been canceled by the end of 2023 were expected to total more than 12 gigawatts of power, representing more than half of the capacity in the project pipeline. So, what happened, and can the U.S. offshore wind industry recover? Estimates...

Panasonic’s new US$4 billion battery factory in De Soto, Kansas, is designed to be a model of sustainability – it’s an all-electric factory with no need for a smokestack. When finished, it will cover the size of 48 football fields, employ 4,000 people and produce enough advanced batteries to supply half a million electric cars per year. But there’s a catch, and it’s a big one. While the factory will run on wind and solar power much of the time, renewables supplied only 34% of the local utility Evergy’s electricity in 2023. In much of the U.S., fossil fuels still play a key role in meeting power demand. In fact, Evergy has asked permission to extend the life of an old coal-fired power plant to meet growing demand, including from the battery factory. With my students at Wellesley College, I’ve been tracking the boom in investments in clean energy manufacturing and how those projects – including battery, solar panel and wind turbine...

Although Vice President Kamala Harris touts clean energy and Donald Trump makes misleading assertions and false claims about it, neither candidate has set forth a comprehensive energy plan. Even if they do, a gridlocked Congress would be unlikely to pass it. Instead, the next president’s greatest influence on clean energy will come through their handling of legislation and regulations put in place since 2021 under the Biden-Harris administration. As an environmental engineer who studies energy and climate change, I expect that Harris, who has strongly supported these policies, would follow through on them, while Trump’s record as president suggests that he would try to roll them back. Trade policies toward China, the leading producer of clean energy technologies, will also be key. Donald Trump and Kamala Harris discuss clean energy policy during their presidential campaign debate on Sept. 10, 2024. Legislation and regulations Th...