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Trees and streets, how might they go together?


Planting trees in an urban environment is not easy. The Government has recently released the ‘Street Tree Selection Guide’ which recommends less commonly used tree species that are deemed suitable for street planting in Hong Kong, in particular highlighting tree characteristics that could adapt to the growing conditions of specific street types. Apart from the recommendations of the guide, are there any areas that require looking into?

Textile recycling: New life for old clothes


In recent years, some fashion brands and research teams have been trying to convert textile waste into recycled fibre for garment manufacturing. Are there any challenges in textile waste recycling? Can the technology help reduce waste?

Is second-hand market the way out for overconsumed items?


Overconsumption leads to a waste of money and resources. Nowadays, there are lots of second-hand platforms where consumers could buy and sell used items. Is it a sustainable way to manage second-hand items or just intensifying consumption?

How to win friends to protect the environment?


Certain human traits may be perceived as undesirable weaknesses. However, such weaknesses can sometimes be used to nudge people towards behaviours that are beneficial to society. Some institutions are also using human tendencies to procrastinate and ‘follow the lead’ to nudge people towards making green choices. How do these strategies work, and how can adverse effects be prevented?

Replacing single-use plastics will require substantial effort


To reduce the consumption of single-use plastics, people have been looking for alternatives that are considered to be relatively more environmentally-friendly, such as oxo-degradable plastic. However, to truly reduce the impact to nature, such alternatives require a host of complementary factors including waste sorting and standard setting.     

Promoting electric buses for greener environment


With a view to improving air quality, the Government has implemented a number of measures to promote the use of electric commercial vehicles. However, only 24 electric buses have commenced operation as at February 2018. What are the challenges facing Hong Kong in the promotion of electric buses? Is there any room for development?

What we can do with yard waste?


While plants are a welcome addition to our city environment, most of yard waste ends up in landfills at present, taking up valuable space and releasing greenhouse gases. Are there any alternatives to handle yard waste? What are the difficulties that might be encountered?     

From meat eaters to bug eaters


While the idea of eating insects may put many people off, some people are touting insects as a more sustainable source of food that can help feed a growing world population. Advocates of entomophagy are using various strategies to promote this eating culture.

A small step by everyone, a giant leap for reducing microplastics


Microplastics are not uncommonly found in personal care products and cosmetics. When microplastics are washed into the sea via drainage systems, it may affect the marine ecosystem and food safety. What can the Government and consumers do to tackle the issue?

Is a deposit return scheme the answer to Hong Kong’s plastic bottle woes?


Plastic bottles are rarely recycled in Hong Kong. Government officials and environmentalists recently suggested launching a deposit return scheme, making consumers pay a deposit on plastic containers which would be refunded when the containers are returned to specified points. Could it be a way to boost recycling rates? What would need to be addressed if it is introduced to Hong Kong?