Over 6,500 stores sign up to US EPA initiative to phase out use of ozone-depleting refrigerant
Walmart and FedEx latest to push forward plans for giant rooftop solar arrays
Software firm argues UK could cut carbon emissions by up to 25m tonnes by tackling unused office space
Claims over better recycling rates than competitors were adjusted for growth in sales
Carbon Reduction Commitment trading mechanism raises prospect of public sector buying carbon credits from private firms
Industry insists it remains on track to beat zero carbon home target, as mayor of London unveils plan for new £4m fund
Installation, toxic components and underqualified personnel raise concerns for health and safety watchdog
Clean tech firm claims recruiting and training new green talent will underpin growth plans
Low-carbon transition plan will hit businesses harder than domestic customers, making the case for energy efficiency clearer still
UK leads Europe in recycling about 22 per cent of its construction waste, but experts insist more must be done