Experiment in New Mexico will try to establish the possibility of cooling the planet by dispersing sulphate aerosols
Two Harvard engineers are planning to spray thousands of tonnes of sun-reflecting chemical particles into the atmosphere to artificially cool the planet, using a balloon flying 80,000 feet over Fort Sumner,...
Theresa May calls on EU to agree to transition period under 'existing structure of EU rules and regulations'
Mayor Andy Burnham kicks off congestion consultation with launch of the UK's first electric bus to be recharged using a pantograph
Engineering giant predicts 'sustained growth' from its Clean Air division, as it announces plan to expand investment in battery technologies
In her long-awaited Florence speech May is expected to outline proposals for a two-year transition framework for Brexit, effectively keeping Britain subject to EU environmental law until at least 2021