Earth and Human Activity
- Chemistry
New process can transform urban CO2 pollution into a resource
Researchers have developed a liquid metal that breaks down carbon dioxide in the air, converting it from a climate threat into a valuable raw material.
- Life
Explainer: What is an endangered species?
Threats such as climate change and habitat loss can put species at risk of going extinct. Different words describe that risk.
- Climate
Nuevo informe de la ONU sobre el clima: no hay tiempo que perder
En el informe de la ONU se vinculan directamente las temperaturas extremas, lluvias e incendios en todo el mundo con el clima cambiante de la Tierra.
- Earth
El volcán de Santorini erupciona más cuando baja el nivel del mar
Los datos que demuestran esta relación entre las erupciones de este volcán griego y el nivel del mar se remontan al menos a 360,000 años.
- Tech
Space trash could kill satellites, space stations — and astronauts
As private companies prepare to sprinkle space with tens of thousands of satellites, experts worry about the mushrooming threat of space junk.
- Climate
World’s oceans have warmed to a ‘point of no return’
More than half the global ocean sees temperature extremes that 100 years ago were rare.
- Environment
‘Mining’ cryptocurrencies pollutes the real world
Bitcoin and other cryptocurrencies exist only online. Yet the environmental impacts of their networks affect the real world.
- Environment
How we choose to pay has hidden costs for the planet
Whether cash or credit, phone apps or digital currencies — all forms of payment have behind-the-scenes costs. And these can vary dramatically.
- Environment
Bees and butterflies struggle to find flowers in polluted air
Emissions from cars and trucks make it harder for insects to find flowers. That in turn reduces flower visits and pollination, a new study finds.
- Environment
Widely used pesticides may threaten Earth’s ozone layer
Data show a major class of long-used “eco-friendly” copper chemicals unexpectedly react with soil, making gases harmful to Earth’s protective ozone layer.
- Earth
Let’s learn about tornadoes
Tornadoes are often spawned by thunderstorms — but can also emerge from hurricanes and wildfires.
- Environment
Scientists Say: Pollution
Pollution is any substance or form of energy released into the environment that is harmful to people or other living creatures.
