While consumers might express concerns for the environmental impacts of disposable plastic bottles, these do not translate to major changes in purchasing behaviour. In other words, knowing that plastic bottles pollute our environment isn’t enough to stop people buying water in plastic bottles. Without intervention, the popularity of bottled water seems unlikely to weaken.

From tiny bacteria to giant blue whales, the chemical reactions going on inside all living things – including us – that keep them alive cannot happen without water. By taking NASA’s lead and following the water, scientists can pinpoint the most compelling locations where life – either past or present – might possibly exist in the vast expanse of the solar system beyond our home planet.

From remote Antarctica to the towering Himalayas, accelerating ice loss under climate change casts a stark shadow over ecosystems, coastlines, and the equilibrium of our global environment. Glaciologists like Professor Andrew Mackintosh work to understand past glacier and ice sheet changes to improve future predictions – and that future looks bleak.