Axios

A new wave of wildfire smoke from Canada reached the U.S. on Tuesday, triggering air quality alerts for millions of people.

Why it matters: Breathing in the unhealthy levels of smoke and other air pollution can increase a person's risk of developing lung and heart conditions, according to the Environmental Protection Agency (EPA).

Despite global commitments to halt the loss of tropical forests, the world lost 10% more primary rainforest in 2022 than it did the year before.

Why it matters: The world's tropical rainforests are a vast terrestrial carbon sink, but they are in jeopardy from logging, agricultural expansion and the effects of climate change, which is altering precipitation patterns.

AtmosZero, a company emerging from stealth today and partnering with a prominent brewery, aims to electrify the production of steam used in industrial applications.

Why it matters: Climate-friendly steam production lacks the buzz of, say, electric vehicles. But it would cut carbon dioxide from multiple industries that use fossil fuel-powered boilers to supply heat.

The Climate Emergency Fund (CEF), which finances disruptive nonviolent climate activism in the U.S. and abroad, is bringing climate scientist Rose Abramoff onto its board, the group tells Axios.

Why it matters: Abramoff lost her job at Oak Ridge Laboratory early this year, after she took part in a protest against fossil fuel sponsorship of the 2022 American Geophysical Union's fall meeting.

At least 45 million people across seven states are under threat from extreme temperatures on Monday, as Texas’ brutal heat wave expands.

The big picture: The high-pressure area aloft, or heat dome, responsible for this event is moving out of Mexico, parking itself over Texas this week.

Over 380,000 customers were without power on Monday morning across the Southern U.S. after strong storms struck the region with high winds and hail over the weekend, according to poweroutage.us.

The big picture: Swaths of Arkansas, Mississippi and Louisiana hit by the storms and without power were also under excessive heat and severe thunderstorm warnings by the National Weather Service.

A database that infrastructure planners use to determine how best to design a bridge, building or new tunnel vastly understates the risk of extreme precipitation events, a report shows.

Last week's climate finance summit in Paris went a considerable way — but perhaps not far enough — to quell demands from developing nations for more funding to help offset the costs of climate change, and the transition to clean energy.

Why it matters: Global climate talks are riven by persistent issues of fairness and trust, with industrialized countries so far failing to deliver on promised climate funds.

Over 50 million people in the southern U.S. were under heat advisories and many others were facing the threat of severe weather that spawned tornadoes and thunderstorms over the weekend and into Monday.

State of play: The severe storms saw an estimated 168,000 customers lose power in Georgia, along with some 132,000 others in both Kentucky and Tennessee and a further 126,000 in Arkansas early Monday, while a series of suspected tornadoes late Sunday damaged property in Indiana and killed a person in the state's Martin County.