Every drop of fresh water contains thousands of different organic molecules that have previously gone unnoticed. By measuring the diversity of these molecules and how they interact with the environment around them, research has revealed an invisible world that affects the functioning of freshwater ecosystems and can contribute to greenhouse gas emissions. 

Plans to save biodiversity must take into account the social impacts of conservation if they are to succeed, say University of Cambridge researchers.

Forests burn, glaciers melt and one million species face extinction. Can we humans save the planet from ourselves? Here, Sir David Attenborough speaks to us about the climate crisis and his hopes for the future. His words begin our new focus on Sustainable Earth, looking at how we transition to a carbon zero future, protect the planet's resources, reduce waste and build resilience.