At COP, Brazil is presenting itself as an Amazon defender. But a key measure to slow deforestation is in grave peril.

The island’s semiconductor industry represents one-quarter of GDP but is a major source of carbon emissions.

Long a controversial energy source, nuclear has been facing a renaissance in space.

The Titan implosion has cast focus on autonomous, unmanned submersibles as the way to uncovering the ocean’s secrets.

A new generation of companies wants to use large, uncrewed aircraft to beam down 5G signals and keep an eye on Earth.

Private and state investments in space may increase to reduce reliance on Russian supply chains.

Plans to advertise from space have been around for decades, but the latest proposals have met fierce criticism.

NFTs drove 2021’s most-hyped art sales but the tech underpinning them raises environmental and long-term value concerns.