carbon footprint
Urban agriculture isn’t as climate-friendly as it seems – but these best practices can transform gardens and city farms
Daisy Hips
Urban agriculture is expected to be an important feature of 21st century sustainability and can have many benefits for communities ...
could jet fuel made from sewage take off?
Daisy Hips
Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, ...
