The eco guide to gold

More nuggets of info on the stuff our Olympics medals were made of

Would you wear wool shoes to save the environment?

As demand for all-wool shoes grows, a number of US footwear brands are heading directly to the source: the sheep pastures of New Zealand

Microplastics should be banned in cosmetics to save oceans, MPs say

Environmental audit committee calls for ban after hearing that microbeads harm marine life and enter the food chain

The deep ocean: plunging to new depths to discover the largest migration on Earth

The deep ocean makes up 95% of Earth, yet only 0.0001% has been explored – the Guardian joined a mission off Bermuda looking deeper than ever before

Video: a dive into Bermuda’s hidden depths

Large cruise ship voyage through Arctic ice rekindles rows

Campaigners say Crystal Serenity trip puts at risk very environment tourists are travelling to see in Northwest Passage

The eco guide to clean beauty

It’s the next big thing in cosmetics, but to be more than a fad it must be sustainable