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Climate

The World’s Most Polluted Countries

On air quality, Ford’s pivot, and solar geoengineering

The World’s Most Polluted Countries
Heatmap Illustration/Getty Images

Current conditions: Flash floods inundated parts of northern Iraq • Fire weather watches are in effect across several states, from Iowa to Maryland • Today marks the official start of spring.

THE TOP FIVE

1. Just 7 countries met WHO pollution limits in 2023

A region’s air should contain no more than 5 micrograms per cubic meter of the dangerous pollutant known as PM2.5, according to World Health Organization recommendations. In Bangladesh last year, the average concentration was 79.9 micrograms, making it the most polluted country in the world. Pakistan, India, Tajikistan, and Burkina Faso also had alarmingly high levels of PM2.5, which comes primarily from burning fossil fuels and is linked to 4 million premature deaths every year. The findings come from Swiss company IQAir, which uses 30,000 air quality monitors to understand pollution levels across the world. “The number of countries and regions with air quality monitoring has steadily increased over the past six years,” the company said in a press release.

IQAir

IQAir

In 2023 just seven countries had air quality that met the WHO guidelines: Australia, Estonia, Finland, Grenada, Iceland, Mauritius, and New Zealand. Average PM2.5 concentration across the U.S. was 9.1 micrograms, and Columbus, Ohio, was the most polluted major city in America.

2. DOE expects geothermal boom by 2050

A report from the Department of Energy projects geothermal energy deployment in the U.S. will grow dramatically by 2050, so long as developers can bring down costs. The DOE says geothermal could account for up to a third of the additional clean energy the country will need by 2050 to hit President Biden’s emissions targets and meet growing electricity demand, E&E News explained. Geothermal energy harnesses the heat from beneath the Earth’s surface for around-the-clock clean energy. Innovations in drilling technology are expected to bring the price of geothermal power down from $100 per megawatt-hour to as low as $60 per megawatt-hour by 2030, which would put it roughly in line with other energy sources, the DOE said. And new geothermal sites will need to be tapped: The report said 18 states will likely have geothermal operations by 2050, up from seven now.

3. Report: Ford pivoting to small EVs

Ford is reportedly “pivoting” from big electric vehicles to smaller, cheaper EVs in an attempt to keep up with Chinese manufacturers like BYD. Bloomberg reported the company has put together a team to work on a new electric platform for its small EVs, with the first vehicle slated to arrive in 2026 and cost around $25,000. “Plans for an electric three-row SUV have been delayed,” Bloomberg added.

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  • 4. Saudi Aramco CEO says fossil fuel phase out is a ‘fantasy’

    In case you were wondering how things are going at CERAWeek, the big oil and gas conference taking place in Houston this week, Reuters reported that “top oil executives took to the stage … to vocally oppose calls for a quick move away from fossil fuels.” “We should abandon the fantasy of phasing out oil and gas, and instead invest in them adequately,” said Amin Nasser, CEO of Saudi Aramco. His remarks were reportedly met with applause and echoed by leaders from Shell, Petrobras, and Exxon Mobil. Petrobras CEO Jean Paul Prates warned rushing the energy transition will create a “crisis that we will never forget.” Meg O’Neill, CEO of Woodside Energy, said the debate had become too “emotional,” and claimed the market for clean fuel technologies is some decades away. U.S. Energy Secretary Jennifer Granholm pushed back, pointing to projections showing oil and gas peaking demand by 2030, and called the transition “an undeniable, inevitable, and necessary realignment of the world’s energy system.”

    5. Harvard pulls the plug on solar geoengineering experiment

    Researchers at Harvard have abandoned a plan to conduct what would have been one of the first solar geoengineering experiments in the stratosphere. Solar geoengineering – also known as “solar radiation management” – involves reflecting sunlight back into space by spraying aerosols into the stratosphere in an attempt to cool temperatures on Earth. It has long been a somewhat fringe idea among scientific circles – a sort of option of last resort – but interest has grown as global emissions climb and the Earth gets hotter. While most solar geoengineering research has happened in labs, Harvard’s Stratospheric Controlled Perturbation Experiment (SCoPEx) was going to launch a high-altitude balloon to release aerosols and observe their behavior. But the project was controversial from the start and encountered multiple delays. In the end its lead investigator walked away. “The platform developed for SCoPEx is expected to be repurposed for basic scientific research in the stratosphere unrelated to solar geoengineering,” the university said in a statement.

    THE KICKER

    Penn State University/YouTube

    A new study suggests using virtual reality to depict worst-case environmental scenarios like mass coral bleaching events can help motivate people to support climate policies.

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    Politics

    How New York Is Weakening Its Climate Law

    The state is the first to backtrack on binding emissions legislation.

    Kathy Hochul.
    Heatmap Illustration/Getty Images

    A wave of climate action swept the country’s statehouses in the early 2020s, with nearly two dozen states setting targets to slash their emissions. New York was ahead of the pack and among the most ambitious, passing the Climate Leadership and Community Protection Act, or CLCPA, in the summer of 2019 to achieve net zero emissions by 2050.

    Now, however, the Empire State will distinguish itself as the first of the bunch to walk back its landmark climate law in the wake of Trump’s re-election.

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    AM Briefing

    Oil Prices Slip

    On a California chem leak, solar manufacturing, and BHP’s climate retreat

    Oil production.
    Heatmap Illustration/Getty Images

    Current conditions: Unprecedented May heat is roasting Western Europe, with temperatures shattering records in at least 20 French towns and soaring to 95 degrees Fahrenheit in London • Bougainville, the autonomous and ethnically distinct region of Papua New Guinea that’s expected to vote for independence next year to become the world’s newest nation, is enduring a week of lightning storms and heavy rain • The Tajik city of Khorog, a provincial capital located in a canyon near the Afghan border, is bracing for snow.


    THE TOP FIVE

    1. Oil prices slide amid hopes for an extended Iran War ceasefire

    The price per barrel of crude fell nearly 7% on Monday as Iranian negotiators arrived in Qatar for peace talks the same day two tankers carrying liquified natural gas passed through the Strait of Hormuz. The vessels shipping LNG from Qatar to China and Pakistan, respectively, successfully navigated the waterway at the mouth of the Persian Gulf on Monday. The signal of a loosening blockade comes two days after another tanker taking crude to China crossed the strait. While President Donald Trump said over the weekend that an agreement in principle to halt fighting with Tehran could come soon, The Wall Street Journal reported that it would take far longer to ease the bottlenecks created by the conflict. Despite reports of new U.S. strikes in Iran Monday night, prices fell another 4% in early trading Tuesday.

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    Blue
    Podcast

    Nvidia’s Case for Why AI Will Cut Emissions

    Rob sits down with the Josh Parker, head of sustainability at America’s world-leading chip designer.

    Nvidia headquarters.
    Heatmap Illustration/Getty Images

    America’s tech companies are transforming the electricity system — building entirely new fleets of new solar panels, batteries, and gas turbines — in order to power what are essentially warehouses filled with cutting-edge chips.

    Almost all of those chips are made by Nvidia. On this week’s episode of Shift Key, Rob is joined by Josh Parker, Nvidia’s head of sustainability. They discuss the climate and electricity impacts of artificial intelligence, why Josh is incredibly bullish on AI’s ability to cut carbon emissions and whether it has done so so far, and the company's work with clean energy and fossil fuel companies.

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