Pilot scheme by Towngas and government extracts hydrogen from coal gas to power vehicles such as double-decker buses and ships.

Hong Kong needs to build a battery-recycling facility as it faces the challenge of sustainably processing 6,000 tonnes of used batteries by 2026 amid a surge in electric vehicles, experts say.

Subsiding air from Super Typhoon Mawar to cause sweltering temperatures on Tuesday and Wednesday, according to city’s weather forecaster.

New extreme heat weather alert introduced after successive record temperatures recorded in city over recent years.

Many animals released into the wild on Buddha’s Birthday will die because they cannot adapt to new environment, says Hong Kong Society of Herpetology Foundation.

Lingnan University finds drop in populations of golden coin turtles, big-headed turtles and Beale’s eyed turtles.

Secretary for Environment and Ecology Tse Chin-wan says city will consider lowering permitted rate of return.

Spurred by financial incentives and a desire to help fight climate change, some restaurant and mall owners are sending leftovers to the government’s pilot processing and recovery centre in North Lantau, where it can be converted to biogas to generate power.

Insignificant decrease in nuisance reports and sightings of animal shows current policy fails to control wild boar population, experts say.

Critics say new law being presented in Legco is disproportionate to action, point out enforcement issues and effectiveness.

Readers discuss the potential impact of the automated toll system on car growth, how to improve road safety on Sai Sha Road, and the future of coal.

Clip shows five baby owls about three weeks old nesting inside hole of tree branch and sitting at foot of old tree.

NGO Sea Education Association urges government to add underwater protective curtains around site to trap sediment or devise plan to move coral.

More detailed data on imported pets needed to check origins of exotic, endangered animals, expert says.

‘It’s not a bee’s venom that kills, but the body’s reaction to it,’ says Benoit Guenard, associate professor at University of Hong Kong.

Sports body’s chief executive officer says athletes have made great strides in tournaments because ‘they had spaces for training’.

Woodland is in heart of housing area in a section designated for residential block, a podium garden with commercial developments and parking spaces.

Readers discuss a compromise on the proposal to stop helpers breaking their contracts, the advantages of an anti-bullying law, and the opposition to the Fanling housing project.

Convenience store chain selling set of Disney plastic bottles, one filled with water and other holding cartoon character plushy.

China, Indonesia, the Philippines, Vietnam and Thailand are responsible for more than half the plastic waste in the oceans. Banning single-use plastic would be a vital step towards reducing this.

The amber warning was at one point raised to red as strong winds and rain whipped the city.

Post readers discuss the environmental impact assessment of a housing plan on the Fanling golf course, and the need for context in a discussion of taxi complaints.

Shrinking number of opportunities to express views leaves observers asking if government still values input.

Government can apply to change planning rules at site, but top surveyor warns that building towers higher will have adverse visual impact.