The three-bedroom family home near Bridgend - which took just 16 weeks to construct - can export more power to the grid than it consumes, experts say.
Heathrow flights will be delayed today after 12 activists cut through a perimeter fence and chained themselves together on the northern runway to protest against possible expansion of the airport.
Seven climate change protesters are arrested following a day of wide-spread demonstrations against government fossil fuel policy.
The latest predictions from climate models suggest that a moderate to strong El Nino is on the cards in the coming months. But what could this mean for global weather?
The grim warning of Vanuatu President Baldwin Lonsdale in the aftermath of the devastating cyclone which hit the Pacific island last week. John Sparks reports.
Climate change scientists in San Francisco face their toughest test yet, as they try to find ways to convince the public of the need to act on their bleak findings.