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António Guterres has a way with words.

United Nations Secretary General António Guterres opened his welcome speech at COP28 in Dubai on Friday with a present-day image of a warming planet. Just days before, he told world leaders, he was standing on the melting ice of Antarctica.
“This is just one symptom of the sickness bringing our climate to its knees,” he said. “A sickness only you, global leaders, can cure.”
He was just winding up.
“We are miles from the goals of the Paris Agreement – and minutes to midnight for the 1.5-degree limit,” Guterres went on. “But it is not too late.”
He called for leadership, cooperation, and political will. Then he took his big swing.
“We cannot save a burning planet with a firehose of fossil fuels,” he said. Quoting Bob Dylan, he went on, “So allow me to have a message for fossil fuel company leaders: Your old road is rapidly aging. Do not double-down on an obsolete business model.”
For nearly six years, Guterres has been speaking to rooms full of the world’s most powerful people about the urgency of fighting climate change, and his sermons never seem to miss. The speeches tend to follow a certain formula. He enumerates the horrors that rising temperatures are already causing around the world. He pleads with leaders to be more ambitious. He issues spicy, no-holds-barred critiques of the fossil fuel industry.
But somehow he keeps them fresh, forceful, even poetic.
Rhetoric on climate change is often circular and stale. Especially at this time of year, you tend to hear the same clichés and platitudes like “It’s time to move from words to action” over and over. Greta Thunberg famously called the conference a bunch of “blah, blah, blah.”
So it’s especially striking to read or listen to Guterres’ poignant missives, full of metaphor and alliteration. He's constantly testing some new analogy or cultural reference to jar his audience out of complacency. And by the end, he’s usually provided at least one or two pithy one-liners perfectly engineered to make headlines.
Here’s a compilation of some of Guterres’s greatest recent hits.
Humanity has opened the gates of hell.
Horrendous heat is having horrendous effects.
Distraught farmers watching crops carried away by floods;
Sweltering temperatures spawning disease;
And thousands fleeing in fear as historic fires rage.
- September 2023, United Nations Climate Ambition Summit
The era of global warming has ended;
The era of global boiling has arrived.
The air is unbreathable.
The heat is unbearable.
And the level of fossil fuel profits and climate inaction is unacceptable.
- July 2023, press conference on historic heat
The climate time bomb is ticking.
But today’s IPCC report is a how-to guide to diffuse the climate time bomb.
It is a survival guide for humanity.
As it shows, 1.5 degrees is achievable
but it will take a quantum leap in climate action.
In short, our world needs climate action on all fronts –
Everything, everywhere, all at once
- March 2023, launch of the Synthesis Report of the Intergovernmental Panel on Climate Change (and, notably, about a week after the movie Everything Everywhere All at Once won the Academy Award for Best Picture)
I have a special message for fossil-fuel producers and their enablers,
scrambling to expand production and raking in monster profits:
If you cannot set a credible course for net-zero,
with 2025 and 2030 targets covering all your operations,
you should not be in business.
Your core product is our core problem.
We need a renewables revolution, not a self-destructive fossil fuel resurgence.
- February 2023, briefing to the General Assembly on priorities for 2023
Today, we are out of harmony with nature.
In fact, we are playing an entirely different song.
Around the world, for hundreds of years,
we have conducted a cacophony of chaos,
played with instruments of destruction.
With our bottomless appetite for unchecked and unequal economic growth,
humanity has become a weapon of mass extinction.
We are treating nature like a toilet.
And ultimately, we are committing suicide by proxy.
- December 2022, UN Biodiversity Conference
Greenhouse gas emissions keep growing.
Global temperatures keep rising.
And our planet is fast approaching tipping points that will make climate chaos irreversible.
We are on a highway to climate hell with our foot still on the accelerator.
A window of opportunity remains open,
but only a narrow shaft of light remains.
- November 2022, COP27
- March 2022, Economist Sustainability Summit
I have seen many scientific reports in my time, but nothing like this.
Today’s IPCC report is an atlas of human suffering
and a damning indictment of failed climate leadership.
- February 2022, launch of the Impacts, Adaptation, and Vulnerability Report of the Intergovernmental Panel on Climate Change
I am here to sound the alarm.
The world must wake up.
We are on the edge of an abyss —
and moving in the wrong direction.
COVID-19 and the climate crisis have exposed profound fragilities as societies and as a planet.
Yet instead of humility in the face of these epic challenges,
we see hubris.
Instead of the path of solidarity,
we are on a dead end to destruction.
- September 2021, address to the General Assembly
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What are the health risks? How can I protect myself? And will my plants be okay?
If you live anywhere near the Great Lakes or Mid-Atlantic (or certain parts of the Mountain West), odds are it’s smoky where you live. Wildfires raging in western Ontario are sending smoke cascading south and east across the U.S., prompting widespread air quality alerts affecting millions of Americans.
The good and — very bad — news is that we’ve been here before. Here’s a look back at some of Heatmap’s coverage from the summer of 2023, when smoke produced by forest fires in Quebec blanketed 128 million people in a murky haze and turned the New York City skyline an ominous shade of orange.
One day — even just one hour — of smoke inhalation can exacerbate pre-existing health conditions and increase an individual’s chance of premature death by 12%. To stay safe, Jeva Lange recommends avoiding prolonged outdoor exposure and masking up when you go outside.
Wildfire smoke is full of tiny pollutants that can leak into your apartment even when the windows and doors are sealed tight. That’s where air purifiers come in, Matthew Zeitlin writes.
Tinted skies are now a rare, remarkable event. But decades ago, before targeted policy interventions, this was everyday life for New Yorkers. Here’s Jeva with more on the legacy of the Clean Air Act.
Before you step out for a run, read Emily Pontecorvo’s guide to what the Air Quality Index is and isn’t telling you.
People should not inhale smoke because of its dangerous health effects. But plants, interestingly, may actually thrive. Allow Jeva to explain.
Rates were up 17% year over year in June, according to the latest Electricity Price Hub update, with another increase on the way.
With higher temperatures come higher electricity bills. Whether through higher seasonal charges or greater usage, Americans across the country were paying more for electricity in June.
In Virginia, the epicenter of the data center boom, the typical household electricity bill was $192 in June, up from $172 in June of last year, according to the latest data from the Heatmap and MIT’s Electricity Price Hub. Rates, meanwhile, were about 18 cents per kilowatt-hour, compared to just over 15 cents in June of last year, a 12% hike. Rates were also up from the end of last year, when they were about 15.5 cents.
The rate increase is largely due to prices set by Virginia’s largest utility, Dominion. Its rates are up 8% so far this year, according to MIT researchers, and 17% over the past 12 months, the result of a base rate increase that took effect at the beginning of the year. The average base rate alone is up 7.5% year over year for the average Dominion customer.
But that’s not all: The fuel portion of the bill is rising $8 a month for the typical customer, Dominion said according to local media reports, as a result of rising costs. The fuel charge went into effect at the beginning of July. Already, Dominion customers are paying about $78 per month for the generation portion of their electricity bill, according to Heatmap-MIT data.
The price hike will likely increase pressure on Dominion as it seeks to sell itself to Florida utility and energy developer NextEra in a $67 billion deal announced in May.
Earlier this week, Virginia's lieutenant governor Ghazala Hashmi sent a detailed letter to the State Corporation Commission, Virginia’s utility regulator, with 64 questions about the proposed merger. She said the deal “carries unprecedented implications for Virginia’s consumers and regulatory landscape.”
Hashmi asked regulators to extend their review of the deal beyond the six-month period mandated by its utility regulations, writing that “forcing this process into the six-month timeline will render an already inadequate period completely unworkable.”
In May, when the deal was announced, NextEra said it would provide over $2 billion of bill credits over two years to Dominion customers in Virginia, North Carolina, and South Carolina, which Dominion executives estimated would add up to $10 per month over the two years.
The enhanced geothermal company just announced a new 19,448-foot well.
Enhanced geothermal company Fervo has drilled another well.
This one is 19,448 feet deep, the company announced Thursday, and includes a 7,500-foot span laterally across the sub-surface. The well — called Sawtooth 7, part of Phase II of its flagship Cape Station project in Milford, Utah — took 21 days to drill, the company said. That matches the time required to drill the wells in Phase I, though the new one is nearly 35% deeper than those, on average, with a 50% greater lateral extension.
The greater depth and distance means greater energy potential from the well, while faster drilling times mean much lower costs. Tim Latimer, Fervo’s co-founder and chief executive, compared the timeline to that of the company’s 2022 Project Red well in Nevada, which achieved a depth of 11,220 feet in 70 days.
“Today, we are drilling deeper, hotter wells that will produce multiples more [megawatts] per well than our Project Red pilot, and we are doing it in a fraction of the time,” Latimer wrote.
Fervo says that its drilling rates at the Cape Station site have improved by 143% since it broke ground there in 2023.
The company says it’s now on track to get project costs down to $5,500 per kilowatt, working toward a goal of $3,000 per kilowatt over the long term. In its IPO filing, Fervo said costs at Cape Station were around $7,000 per kilowatt, indicating significant improvements in drilling efficiency in a relatively short period of time.
The news should be welcome to Fervo and its investors. Shortly after going public in May, the company announced that one of its Utah wells blew out. The company said at the time that there were no injuries, nor was there any environmental damage or “material impact to either cost or schedule of the project” at Cape Station.
Fervo raised almost $2 billion in its IPO, which it said will go to fund further progress on the flagship installation. Shares were trading at around $26 on Thursday afternoon, just shy of their $27 IPO price and up over 13% on the day.