The global hunt for lithium heats up
Demand for lithium is predicted to surge over the next two decades, especially as transport electrifies. Currently, however, most of this lithium is sourced from China – sparking a global search for new supplies Anthony King reports.
Hydrogen's future energy impact: Where does it go next?
Hydrogen is often touted as a key component of the transition to a low-carbon economy. But the size and impact of its contribution is proving difficult to predict. Maria Burke reports
Tyre particles: Understanding the environmental impact
Tyre particles are entering the planet’s air and water systems at an alarming rate. But the trend towards heavier cars and tyre compositions focused on fuel efficiency and durability may not be helping. Emma Davies reports