Earth and Human Activity
- Chemistry
A new catalyst turns greenhouse gas into jet fuel
The catalyst is an improvement over its predecessors. Made of cheap materials like iron, it produces jet fuel in a single step.
- Ecosystems
Can people protect as much space as nature needs?
To save biodiversity, nations are drafting a plan to protect 30 percent of Earth by 2030. Up for debate is how best to do that.
- Agriculture
Dew collector brings water to thirsty plants
This invention grabs water from the air at night. All it needs is the sun’s warmth the next day to release that moisture to growing plants.
- Environment
Camels have been dying after mistaking plastic for food
Plastic waste has been building up in the guts of some camels. It may now be killing off one percent of them in the United Arab Emirates each year.
- Environment
Analyze this: Microplastics are showing up in Mount Everest’s snow
Microplastics have made their way to the snow on Earth’s tallest peak. Most of the plastic likely comes from climbers’ equipment and clothes.
- Chemistry
A soil-based ‘concrete’ could make buildings green, even on Mars
A new soil-based material offers an alternative to concrete for 3-D printing environmentally friendly buildings.
- Environment
Why today’s ‘fast fashions’ can be bad for the planet
The constant buy-wear-toss cycle of fast fashion isn’t sustainable. It hurts the environment and takes a toll on our wallets, too.
- Environment
Old clothes soon may be recycled, not trashed
One day, clothes may be recycled almost as much as plastics and glass are now. See how chemists are moving us in that direction.
- Chemistry
Here’s how to make flip-flops biodegradable
Innovative flip-flops made from an algae-based plastic decompose in soil or compost. The comfy shoes also avoid use of fossil fuels.
- Animals
Around the world, birds are in crisis
Human activities around the world are threatening bird species. Numbers of even some of the most common species are starting to fall.
- Environment
Surprising long-haul dust and tar are melting high glaciers
Dust and tar blown onto high mountains, like the Himalayas, boost the melting of snow and ice far more than scientists had realized. Here’s why.
- Computing
Explainer: What is an algorithm?
These step-by-step instructions underlie social media, internet searches and other computer-based activities. But what are they exactly? We explain.
