Electrification

Imagine a future with nearly silent air taxis flying above traffic jams and navigating between skyscrapers and suburban droneports. Transportation arrives at the touch of your smartphone and with minimal environmental impact. This isn’t just science fiction. United Airlines has plans for these futuristic electric air taxis in Chicago and New York. The U.S. military is already experimenting with them. And one company has a contract to launch an air taxi service in Dubai as early as 2025. Another company hopes to defy expectations and fly participants at the 2024 Paris Olympics. Backed by billions of dollars in venture capital and established aerospace giants that include Boeing and Airbus, startups across the world such as Joby, Archer, Wisk and Lilium are spearheading this technological revolution, developing electric vertical takeoff and landing (eVTOL) aircraft that could transform the way we travel. Electric aviation promises to alleviate urban congestion, open up rur...

Most of the clothing and gadgets you buy in stores today were once in shipping containers, sailing across the ocean. Ships carry over 80% of the world’s traded goods. But they have a problem – the majority of them burn heavy sulfur fuel oil, which is a driver of climate change. While cargo ships’ engines have become more efficient over time, the industry is under growing pressure to eliminate its carbon footprint. European Union legislators reached an agreement to require an 80% drop in shipping fuels’ greenhouse gas intensity by 2050 and to require shipping lines to pay for the greenhouse gases their ships release. The International Maritime Organization, the United Nations agency that regulates international shipping, also plans to strengthen its climate strategy this summer. The IMO’s current goal is to cut shipping emissions 50% by 2050. President Joe Biden said on April 20, 2023, that the U.S. would push for a new international goal of zero emi...

Gas stoves are a leading source of hazardous indoor air pollution, but they emit only a tiny share of the greenhouse gases that warm the climate. Why, then, have they assumed such a heated role in climate politics? This debate reignited on Jan. 9, 2023, when Richard Trumka Jr., a member of the U.S. Consumer Product Safety Commission, told Bloomberg News that the agency planned to consider regulating gas stoves due to concerns about their health effects. “Products that can’t be made safe can be banned,” he noted. Politicians reacted with overheated outrage, putting gas stove ownership on a par with the right to bear arms and religious freedom. CPSC Chair Alexander Hoehn-Saric tried to douse the uproar, stating that he was “not looking to ban gas stoves” and that his agency “has no proceeding to do so.” Neither does the Biden administration support a ban, a White House spokesperson said. Nevertheless, congressional Republicans raced to t...

Electric planes might seem futuristic, but they aren’t that far off, at least for short hops. Two-seater Velis Electros are already quietly buzzing around Europe, electric sea planes are being tested in British Columbia, and larger planes are coming. Air Canada announced on Sept. 15, 2022, that it would buy 30 electric-hybrid regional aircraft from Sweden’s Heart Aerospace, which expects to have its 30-seat plane in service by 2028. Analysts at the U.S. National Renewable Energy Lab note that the first hybrid electric 50- to 70-seat commuter plane could be ready not long after that. In the 2030s, they say, electric aviation could really take off. That matters for managing climate change. About 3% of global emissions come from aviation today, and with more passengers and flights expected as the population expands, aviation could be producing three to five times more carbon dioxide emissions by 2050 than it did before the COVID-19 pandemic. Aerospace engineer and assi...