Players to get access to refillable water bottles on court as Evian and Wimbledon pilot new waste-saving initiatives

Transport Secretary hails adoption of clean technologies as 'maritime's biggest transformation since sail gave way to steam'

But Treasury sparks speculation that other green levies could return to energy bills from July

New time of use offer to provide households with half price power from 11am to 4pm on Sundays

Meeting delivers encouraging progress, but campaigners warn urgent action now needed to deliver 'taboo-busting' reforms to international financial architecture

US lab-grown meat certification, China's EV tax breaks, and all the biggest green business stories from around the world this week

But campaigners warn ambitious agreement urgently needed to reform global financial system and accelerate flows of climate finance

Ahead of Paris meeting, world leaders call for increased role for public and private finance as they warn Sustainable Development Goals and climate targets are at risk

The comprehensive energy efficiency strategy adopted in Ireland has become the envy of its neighbours and points to how deep decarbonisation of the building stock might be achieved

European Heat Pump Association says sector could deploy over 43 million heat pumps by the end of the decade