The 2024 Summer Games are going all in on renewable energy, recycled materials and more to shrink their carbon footprint. They’re a test bed for how big events can do better for the environment.

Access to energy is a more immediate concern than affordability in many parts of the world.

Analysis and materials identified by MIT engineers could lead to more energy-efficient fuel cells, electrolyzers, batteries, or computing devices.

Researchers have developed soft, stretchable ‘jelly batteries’ that could be used for wearable devices or soft robotics, or even implanted in the brain to

The new government wants zero carbon power by 2030 – here’s what needs to happen.

One in 4 American households is at risk of losing power because of the high cost of energy. Over 30% of those disconnections are in summer, when heat gets dangerous.

The approach could help engineers design more efficient energy-conversion systems and faster microelectronic devices, reducing waste heat.

AI is everywhere these days, which means more data centers eating up more electricity. There’s no easy fix, but some combination of efficiency, flexibility and new technologies could ease the burden.

In the 19th century, many doctors might not have believed germ theory, but they switched to using protective methods anyway for a simple reason.

Some processes that support fusion energy fuel climate change and may harm the environment.