Four days since leaving port, Dr Katsiaryna Pabortsava reaches her destination. She's in the middle of the North Atlantic, thousands of miles from land, and she's looking for microplastics.

Auchencorth Moss is one of Scotland's distinctive moorlands, this precious habitat is now providing valuable information for scientists working to combat air pollution in cities and towns across the country.

Around half of marine creatures living at depths of more than 2,000 metres in the North Atlantic could be eating microplastic material, marine scientists have discovered.

This week marks the 30th anniversary of the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer. The signing of the Montreal Protocol was a landmark political event. The treaty is the first in the history of the United Nations to achieve universal ratification. Environmental science made it happen.

Could your garden be a vital frontline in the battle to protect and promote biodiversity? Barry Hague spoke to Professors Rosie Hails and Nigel Dunnett to find out more.

Research being conducted at a Beijing super-site is monitoring concentrations and varieties of airborne particles and volatile gases in the atmosphere and their potential impact on human health.

We could be encouraging antimicrobial resistance by overusing antibiotics but other factors may also be at play. We spoke to researchers going beyond the clinic to understand how drug-resistance builds up in the bacteria in our sewers and rivers.

Professor Kelly holds the chair in environmental health at King's College London, where he is director of the Analytical & Environmental Sciences Division. Here, he answers some key questions about air pollution in the UK's capital.