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Power plants contribute a quarter of the United States’ climate-warming greenhouse gas emissions. Howard C via Getty images

EPA’s crackdown on power plant emissions is a big first step – but without strong certification, it will be hard to ensure captured carbon stays put

Fossil fuel power plants can avoid most emissions by capturing carbon dioxide and pumping it underground. But to be a climate solution, that carbon has to stay stored for thousands of years.
Hydrogen has potential, but it faces some big challenges, including a lack of pipeline infrastructure. Petmal/iStock/Getty Images Pluss plus

What is hydrogen, and can it really become a climate change solution?

Hydrogen is getting a lot of attention as the EPA prepares to propose new emissions rules for power plants. But it has a problem: almost all of it used today is made from fossil fuels.
Room-temperature superconductors could make high-speed maglev trains more practical. Visual China Group via Getty Images

Room-temperature superconductors could revolutionize electronics – an electrical engineer explains the materials’ potential

Superconductors make highly efficient electronics, but the ultralow temperatures and ultrahigh pressures make them costly and difficult to use. Room-temperature superconductors promise to change that.
Magnetic levitation is just one of the interesting attributes that make superconductors so interesting. Mark Garlick/Science Photo Library vie Getty Images

How do superconductors work? A physicist explains what it means to have resistance-free electricity

Superconductors are materials that can transmit electricity without any resistance. Researchers are getting closer to creating superconducting materials that can function in everyday life.
Snow on cattle drive sculptures in Dallas after a winter storm, Feb. 3, 2022. Emil Lippe/Getty Images

Two years after its historic deep freeze, Texas is increasingly vulnerable to cold snaps – and there are more solutions than just building power plants

Texas wasn’t prepared to keep the lights on during Winter Storm Uri, and it won’t be ready for future cold weather unless it starts thinking about energy demand as well as supply.
A driver charges his electric car at a Tesla Supercharger station in Miami, Fla. In areas where multi-unit residential buildings cannot adopt EV charging infrastructure, public vehicle charging stations are crucial. (AP Photo/Rebecca Blackwell)

Electric vehicles are now trending. But where can we charge them?

Canada’s zero-emissions vehicle sales target will need hundreds of thousands of EV charging points to be installed in homes, workplaces, retail spaces and along highway corridors in the coming years.
Scientists say that wasting coffee and water while making a cup of coffee has a larger carbon footprint than using coffee capsules. (Unsplash)

Here’s how your cup of coffee contributes to climate change

Coffee capsules aren’t the biggest carbon culprits. It’s better to use a capsule than to waste coffee and water.
Using electricity to manually delete emails can actually have a greater carbon impact than simply storing them. (Unsplash)

Can sending fewer emails or emptying your inbox really help fight climate change?

Digital activities, like sending emails, contribute marginally to the annual carbon footprint of information and communication technology users.

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