With their bare hands, Celia Fung Sze-lai and her friends spend hours shredding foam lunch boxes into small flakes at the Occupy area outside the legislature.

Hong Kong is set to pay about 20 per cent more for its water imports from across the border as part of a new deal signed with Guangdong, but it is unclear whether it will translate into higher costs for consumers.

Protests are expected to ramp up a gear today after student leaders set CY Leung a deadline this evening to resign before they start occupying government buildings.

Hong Kong does not need a controversial HK$30 billion upgrade of its centralised wastewater treatment system as the water in the harbour is clean enough, at least for now, environment officials say.

Elite business groups have come out against a government proposal to import 30 per cent of Hong Kong's electricity from the mainland, favouring the present high degree of self-sufficiency.

The government must carry out more studies on local air pollution if it is to convince the public that further expansion of Tung Chung new town will not pose a risk to health, a green group says.

The first-ever collaborative project between Hong Kong and Shenzhen to create solar cells for power generation will come to an end this year after a subsidiary of American chemical giant DuPont pulled out.

A tin of cranberry sauce that's nearly seven years past its best-before date could still be safe to eat, testing by Baptist University has found.

The possible home of the endangered and highly priced Hong Kong grouper in Sai Kung should be turned into a marine park to better conserve the species of fish, green groups say.

A green group is calling on conservation officials to plug loopholes in protection measures for ecologically sensitive areas in Tuen Mun and South Lantau.

Conservation officials are mulling opening a new footpath in Tai Long Sai Wan that will bypass a blockade by rural residents upset over the incorporation of their village into a country park.

Power bills on Hong Kong Island and Lamma could be cut if hopes Hongkong Electric can secure a bargain deal to buy gas come to fruition.

CLP Power and Hongkong Electric have agreed to fork out about HK$100 million in total to help residents of selected buildings save energy, according to a review of the regulatory rules governing both companies.

China National Offshore Oil Corporation (CNOOC) is working with a local company on plans to introduce liquefied natural gas as vehicle fuel, with a vision of building a network of LNG refuelling stations similar to those found in mainland cities.

Mainland oil giant China National Offshore Oil Corporation (CNOOC) is working on plans to introduce liquefied natural gas for heavy vehicles in the city, yet the government concluded five years ago that the fuel had little future in Hong Kong.

Hong Kong is to be the focus of a "globally important" link-up with the World Health Organisation to monitor the success of clean air policies in the city. The aim is to develop a mechanism to measure changes in air quality and the public's health.

The environment minister has urged the Council for Sustainable Development to submit its report on a waste-disposal charge by next summer so that he can start to prepare for its implementation.

For Christine Loh Kung-wai, her first year in the government has proved to be the "most sobering" time of her life. The mood has descended as she tackled the city's worsening air pollution and mounting waste crisis.

Conservationists have urged the government to clarify whether nature preservation is a legitimate cause for taking land from private owners.