United States

This archive collects solutions-journalism stories and milestones from the United States — covering policy wins, community-led efforts, scientific advances, and social progress happening across the country. Each entry highlights what’s working and why it matters.

Charging an EV, for article on municipal fleet electrification, for article on tailpipe emission standards

Biden administration rolls out new tailpipe rules that will boost EVs and hybrids

New U.S. tailpipe pollution rules are projected to prevent more than 7 billion metric tons of planet-warming emissions over their lifetime, cutting passenger car pollution nearly in half by 2032 compared to 2026 levels. Rather than mandating a hard electric vehicle quota, the EPA lets automakers mix battery EVs, plug-in hybrids, and more efficient gas engines to hit the same pollution ceiling. A former EPA transportation chief called it the single most important climate regulation in American history, and cleaner air will especially benefit communities living near busy roadways. With transportation being the largest source of U.S. climate pollution, this rule nudges the world’s second-biggest car market closer to the pace of change already underway in Europe and China.

Milky Way arching over dark desert sagebrush landscape for an article about Oregon Outback dark sky sanctuary, for article on dark sky sanctuary

Oregon outback becomes world’s largest dark sky sanctuary at 2.5 million acres

The Oregon Outback International Dark Sky Sanctuary has become the largest dark sky sanctuary on Earth, covering 2.5 million acres of southeastern Oregon’s Lake County after receiving official certification from DarkSky International. The designation protects skies already considered among the darkest in the world, with nearly 1.7 million acres managed by the Bureau of Land Management under commitments for ongoing monitoring and lighting improvements. Beyond stargazing, the protection matters for wildlife along the Pacific Flyway and species like bighorn sheep and sage grouse that depend on undisturbed terrain. Organizers hope the sanctuary could eventually expand to over 11 million acres.

Offshore wind turbines with paddler in foreground, for article on offshore wind energy

America’s first utility-scale offshore wind farm is now delivering energy to the grid

Offshore wind power is officially flowing in the United States. New York’s South Fork Wind just switched on all 12 turbines about 35 miles off Montauk, sending roughly 130 megawatts to Long Island and the Rockaways — enough for around 70,000 homes and businesses. Hundreds of union workers across three Northeast ports built the farm, including the country’s first domestically built offshore wind substation, laying the groundwork for a supply chain that barely existed a decade ago. It’s a modest start by European standards, but it proves America can actually permit, finance, and complete a utility-scale offshore project — the kind of foundation every larger clean energy ambition has to be built on.

Salmon jumping upstream, for article on Columbia River salmon restoration

President Biden brokers $1 billion deal with Oregon, Washington, 4 Columbia River tribes to revive Northwest salmon population

A billion-dollar plan to bring salmon back to the Columbia River Basin just got a formal signature from the Biden administration, Oregon, Washington, and four tribal nations. The Columbia was once the greatest salmon-producing river system on Earth, supporting 16 stocks — four are now extinct and seven are listed as endangered. The agreement pauses decades of litigation and, crucially, puts tribes at the center as active partners in clean energy development, not just consultation. Yakama Nation Chairman Gerald Lewis put it plainly: more clean energy, yes, but built in a way that’s socially just. It’s a hopeful blueprint for what an honest, Indigenous-led ecological recovery can look like — for the Pacific Northwest and for river systems everywhere.

Aerial view of large electrical power plant with many rows of solar photovoltaic panels for producing clean ecological electric energy in morning, for article on zero-carbon power capacity

96% of all new power capacity in the U.S. in 2024 will be carbon-free

Clean energy just crossed a quiet threshold in the United States: 96 percent of new electricity capacity planned for 2024 is zero-carbon, while new natural gas additions have fallen to a 25-year low. The real game-changer is battery storage, which lets solar and wind power flow steadily even when the sun sets or the wind dies down. Utility-scale batteries alone account for 14.3 gigawatts of planned additions this year, dwarfing new gas builds. Tax credits from the 2022 Inflation Reduction Act helped unlock a wave of domestic battery manufacturing, bringing costs down and deployment up. It is a hopeful signal that the long-promised clean grid is finally being built, not just imagined.

Dentist's Hand Taking Saliva Test From Woman's Mouth, for article on handheld saliva test for breast cancer

Hand-held test for breast cancer uses your saliva and gives accurate readings in 5 seconds

A handheld breast cancer screener developed by researchers in the U.S. and Taiwan can detect cancer biomarkers from a single drop of saliva in under five seconds — using a reusable circuit board that costs just $5 and paper test strips priced in pennies. Built on the same glucose-strip technology found in home diabetes kits, the device was designed specifically for clinics and communities where mammograms and MRIs aren’t an option. Lead author Hsiao-Hsuan Wan said the goal was to make screening possible where it simply hasn’t been before. Clinical trials and approvals still lie ahead, but if it gets there, early detection — one of medicine’s most powerful tools against breast cancer — could finally reach the millions of women long left out.

Allegiant Stadium, for article on solar-powered Super Bowl

Super Bowl 58 first to be fully powered by renewable energy

Renewable electricity powered Super Bowl LVIII from end to end, drawing on more than 621,000 solar panels installed across the Nevada desert. Allegiant Stadium runs year-round on solar through a 25-year agreement with NV Energy, so this wasn’t a one-weekend gesture dressed up for the cameras — it’s how the building keeps the lights on every day. The same solar farm produces enough electricity to power around 60,000 homes, easily absorbing the game’s 10-megawatt demand without strain. When the most-watched event in American sports runs smoothly on sunshine, the old worry that renewables can’t be trusted with serious loads gets a lot harder to argue, anywhere in the world.

Hands making hear shape over transgender flag in background

More than 90% of trans people are more satisfied with life after transitioning, massive new study finds

Ninety-four percent of transgender people said that they were either a little or a lot more satisfied with their lives since they transitioned, the 2022 U.S. Transgender Survey (USTS) by the National Center for Transgender Equality (NCTE) found. The study, which is the latest edition of the influential survey of transgender people, involved 92,329 transgender and nonbinary respondents answering questions about various aspects of their lives from October 19 to December 5, 2022.

A heat pump unit on a home exterior, representing U.S. heat pump sales growth supported by the Kigali Amendment

Nine U.S. states, including California and New York, sign heat pump agreement to clean up air pollution

Nine U.S. states have inked an agreement to promote climate-friendly heat pump sales. The memorandum of understanding sets a 2030 target for heat pumps to make up 65% of residential heating, cooling, and water heating equipment sales. By 2040, the goal is for heat pumps to account for 90% of the HVAC and water heating market. The states on board with the agreement include: California, Colorado, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, and Rhode Island.