Scientist's secret to sustainable living? One small change a day 

Environmental scientist Anne Marie Mahon says all householders and communities can boost our planet's health 

Dr Anne Marie Mahon in her polytunnel at her home, Portumna, Co Galway. Pictures: Hany Marzouk

Exploring the worlds beneath the waves opened Anne Marie Mahon’s eyes to a career and way of living.

It was something she never tired of as she started working as a marine biologist after completing her doctorate.