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New pathway engineered into plants lets them suck up more CO₂

Lots of people are excited about the idea of using plants to help us draw down some of the excess carbon dioxide we've been pumping into the atmosphere. It would be nice to think that we could reforest our way out of the mess we're creating, but recent studies have indicated there's simply not enough productive land for this to work out. One alternative might be to get plants to take up carbon dioxide more efficiently. Unfortunately, the enzyme that incorporates carbon dioxide into photosynthes

We Asked Dentists: What's the Best Whitening Toothpaste of 2025?

Why we like it: Colgate Optic White Pro Series toothpaste is one whitening toothpaste that Dr. Fatima Khan, a dentist in Houston, Texas, recommends. Some of her reasons for recommending it include its trusted brand name and its 5% hydrogen peroxide whitening agent. Unlike other whitening agents that work by removing stains on the surface of the tooth, hydrogen peroxide can get inside the tooth so it whitens intrinsically as well as extrinsically. Sachar also recommends this toothpaste, saying,

Best Mineral Sunscreen of 2025

CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. Sunscreen is an important part of skin care year-round, but especially in the summer, when we tend to be outside more often in more intense sun. Mineral sunscreens (also called physical sunscreens) tend to be a great fit for those with sensitive skin. While chemical sunscreens absorb UV rays, mineral sunscreens reflect the rays u

New protein therapy shows promise as antidote for carbon monoxide poisoning

University of Maryland School of Medicine (UMSOM) researchers, along with their colleagues, engineered a new molecule that appears promising as an effective antidote for carbon monoxide poisoning with fewer side effects than other molecules currently being tested, according to a new study published in the journal PNAS. Carbon monoxide poisoning accounts for 50,000 emergency room visits in the U.S. each year and causes about 1,500 deaths. These deaths may occur when carbon monoxide released from

New Protein Therapy Shows Promise as Antidote for Carbon Monoxide Poisoning

University of Maryland School of Medicine (UMSOM) researchers, along with their colleagues, engineered a new molecule that appears promising as an effective antidote for carbon monoxide poisoning with fewer side effects than other molecules currently being tested, according to a new study published in the journal PNAS. Carbon monoxide poisoning accounts for 50,000 emergency room visits in the U.S. each year and causes about 1,500 deaths. These deaths may occur when carbon monoxide released from

The Best Whitening Toothpaste of 2025, According to Dentists

Why we like it: Colgate Optic White Pro Series toothpaste is one whitening toothpaste that Dr. Fatima Khan, a dentist in Houston, Texas, recommends. Some of her reasons for recommending it include its trusted brand name and its 5% hydrogen peroxide whitening agent. Unlike other whitening agents that work by removing stains on the surface of the tooth, hydrogen peroxide can get inside the tooth so it whitens intrinsically as well as extrinsically. Sachar also recommends this toothpaste, saying,

Nitrous Oxide Deaths in America Are Surging

A common sedative sometimes taken to get high is becoming deadlier. Research out this week finds that annual U.S. deaths caused by nitrous oxide, commonly known as laughing gas or whippits, have significantly spiked over the past decade and a half. Researchers at the University of Mississippi and the University of Illinois at Urbana-Champaign conducted the study, an analysis of mortality data collected by the Centers for Disease Control and Prevention. They found that yearly reported nitrous ox

Best Whitening Toothpaste of 2025, According to Dentists

Why we like it: Colgate Optic White Pro Series toothpaste is one whitening toothpaste that Dr. Fatima Khan, a dentist in Houston, Texas, recommends. Some of her reasons for recommending it include its trusted brand name and its 5% hydrogen peroxide whitening agent. Unlike other whitening agents that work by removing stains on the surface of the tooth, hydrogen peroxide can get inside the tooth so it whitens intrinsically as well as intrinsically. Sachar also recommends this toothpaste, saying,

Google invests in carbon dioxide battery for renewable energy storage

Google has announced that it has signed a global commercial partnership with Milan-based startup Energy Dome and has also invested in its long duration energy storage (LDES) tech for renewable energy. The deal, its first investment in LDES tech, entails using Energy Dome's carbon dioxide battery for the grids that power Google’s operations around the world. Batteries are used to keep excess energy generated by renewable sources, such as solar and wind, during peak production and when demand is l

An Inventor Is Injecting Bleach Into Cancerous Tumors—and Wants to Bring the Treatment to the US

Xuewu Liu, a Chinese inventor who has no medical training or credentials of any kind, is charging cancer patients $20,000 for access to an AI-driven but entirely unproven treatment that includes injecting a highly concentrated dose of chlorine dioxide, a toxic bleach solution, directly into cancerous tumors. One patient tells WIRED her tumor has grown faster since the procedure and that she suspects it may have caused her cancer to spread—a claim Liu disputes—while experts allege his marketing

Two-step system makes plastic from carbon dioxide, water and electricity

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Credit: Angewandte Chemie International Edition (2025). DOI: 10.1002/anie.202503003 What if a machine could suck up carbon dioxide from the atmosphere, run it through a series of chemical reactions, and essentially spit out industrially useful plastic? "I think that is something that we, as a society, would be inte

Methane Pollution Has Cheap, Effective Solutions That Aren’t Being Used

This story originally appeared on Vox and is part of the Climate Desk collaboration. Odorless and colorless, methane is a gas that is easy to miss—but it’s one of the most important contributors to global warming. It can trap up to 84 times as much heat as carbon dioxide in the atmosphere, though it breaks down much faster. Measured over 100 years, its warming effect is about 30 times that of an equivalent amount of carbon dioxide. That means that over the course of decades, it takes smaller a

The Best Teeth Whitening Strips in 2025. Plus, Dentist Tips for Long-Lasting Results

Those with sensitive teeth should look out for products without hydrogen peroxide. Make sure the white strips fit snug on your teeth and don't touch the gums. CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. Professional teeth whitening can cost anywhere from $300 to $1,000. It’s no surprise many people turn to over-the-counter strips, kits and toothpaste to brighten their sm

The iPhone Air may get a new battery-saving display – but not this year

One of the likely challenges of the upcoming iPhone 17 Air is battery life. Indeed, Apple’s own tests reportedly show that a lot of us wouldn’t make it through the day with the ultra-slim model. The company may have a fix for that in the works, in the form of a new power-efficient display upgrade. But Apple isn’t expected to incorporate the new tech before 2027 at the earliest … The iPhone 17 Air is set to be the slimmest iPhone Apple has ever made, but it’s going to come with some significant

Major sugar substitute found to impair brain blood vessel cell function

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Credit: Pixabay/CC0 Public Domain Erythritol may impair cellular functions essential to maintaining brain blood vessel health, according to researchers at the University of Colorado Boulder. Findings suggest that erythritol increases oxidative stress, disrupts nitric oxide signaling, raises vasoconstrictive peptide