BBC News Science & Environment

Welsh firms are using seaweed and other materials to make compostable alternatives to plastics.

India watered down a deal to cut reliance on coal even as its capital Delhi reels from toxic air quality.

A growing number of tech firms have developed robots the say could replace bar staff.

First Minister Mark Drakeford says the summit gives optimism for dealing with the climate crisis.

But Boris Johnson says the achievements of the Glasgow summit are "tinged with disappointment".

COP26 President Alok Sharma speaks after an agreement to "phase down" coal rather than "phase out".

Conservationists appeal for people to stay away from the walrus at Seahouses to keep it safe.

Are rich countries close to meeting their climate promises to the developing world?

Tens of thousands of climate protestors gathered in Glasgow - but there was no serious violence or damage to property.

The decision to phase down coal shows progress but pledges are not enough to cap temperature rises.

Boris Johnson says despite the achievements of COP26, his reaction was "tinged with disappointment".

BBC Wales' environment correspondent has spent the last two weeks covering the summit in Glasgow.

A crucial climate change summit has been held in the UK which could change our lives.