This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology.

US investigators are using AI to detect child abuse images made by AIGenerative AI has enabled the production of child sexual abuse images to skyrocket. Now the leading investigator of child exploitation in the US is experimenting with using AI to distinguish AI-generated images from material depicting real victims, according to a new government filing.

The Department of Homeland Security’s Cyber Crimes Center, which investigates child exploitation across international borders, has awarded a $150,000 contract to San Francisco–based Hive AI for its software, which can identify whether a piece of content was AI-generated. Read the full story.

—James O’Donnell

Coming soon: our 2025 list of Climate Tech Companies to Watch

The need to cut emissions and adapt to our warming world is growing more urgent. This year, we’ve seen temperatures reach record highs, as they have nearly every year for the last decade. Climate-fueled natural disasters are affecting communities around the world, costing billions of dollars. 

That’s why, for the past two years, MIT Technology Review has curated a list of companies with the potential to make a meaningful difference in addressing climate change (you can revisit the 2024 list here). We’re excited to share that we’ll publish our third edition of Climate Tech Companies to Watch on October 6. Here’s what you can expect from this year’s list.

—Casey Crownhart

The must-reads

I’ve combed the internet to find you today’s most fun/important/scary/fascinating stories about technology.

1 ChatGPT’s parental controls are now live
The model can now alert parents and law enforcement when users under 18-years old discuss self harm or suicide. (Wired $)
+ The feature launches as chatbot makers face increasing pressure to improve safety. (Bloomberg $)
+ The looming crackdown on AI companionship. (MIT Technology Review)

2 Companies’ AI spending is spiralling out of control
And it’s unclear whether they’ll ever get returns on their investments. (WSJ $)
+ Some VCs are convinced AI is the best way to make a quick buck. (TechCrunch)
+ Investors are wondering what to invest in beyond AI. (Reuters)

3 Even oil executives are worried by Trump’s attacks on offshore wind
Cracking down on renewables now is bad news for traditional energy down the line. (NYT $)
+ The scale of the Trump administration’s intervention is wild. (The Guardian)
+ How to make clean energy progress under Trump in the states. (MIT Technology Review)

4 How America is winning the war on city fires
Making homes fire-resistant isn’t glamorous—but it’s essential. (Vox)
+ How AI can help spot wildfires. (MIT Technology Review)

5 Top AI firms are going all-in on world models
They’re powered by videos and robotics data, not just language. (FT $)
+ Experts are convinced they’re vital to creating the next wave of AI. (WSJ $)

6 China is rushing to electrify freight trucks
Not content with dominating the electric car market, it’s eyeing bigger vehicles. (Rest of World)
+ Sales of battery-powered cars are projected to plummet in the US. (NYT $)

7 What we lose when we rely on AI translation
Nuance and cultural context are among the first casualties. (WP $)
+ How AI and Wikipedia have sent vulnerable languages into a doom spiral. (MIT Technology Review)

8 The tricky ethics of gene-editing the natural world
Just because we can, doesn’t mean we should. (Aeon)
+ The short, strange history of gene de-extinction. (MIT Technology Review)

Quote of the day

“There’s so much pressure to be the company that went from zero to $100 million in X days.”

—An anonymous VC tells Fortune about the intense pressure on startups in the age of AI hype.

One more thing

How DeepSeek became a fortune teller for China’s youthAs DeepSeek has emerged as a homegrown challenger to OpenAI, young people across China have started using AI to revive fortune-telling practices that have deep roots in Chinese culture.

—Caiwen Chen

We can still have nice things

A place for comfort, fun and distraction to brighten up your day. (Got any ideas? Drop me a line or skeet ’em at me.)

+ This site lets you find out what was happening in the news on the day you were born. 
+ This blistering track by South Korean band Silica Gel confirms rock is alive and well.
+  Spend a few minutes exploring Hieronymus Bosch’s Garden of Earthly Delights.
+ Play around with this map that allows you to explore movie settings around the world.