In just a few months, ESA’s EarthCARE satellite will be lofted into orbit to fill in a piece of the complex climate puzzle – that piece being how clouds and aerosols, small particles such as dust suspended in the air, affect Earth’s energy balance.

With the climate crisis upon us, this information is needed more urgently than ever – so much so, that the science of clouds and aerosols has been prioritised by the European Commission and ESA as part of their new Earth System Science Initiative.