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Thomas Tang
Thomas Tang
Dr Thomas Tang is CEO and founder of PJ Sustainability Consulting Limited.

Food that is edible and nutritious is often still thrown away, but it can be rescued and given to vulnerable groups. It is sad that Hong Kong tolerates so much urban poverty among these groups, who should not suffer from hunger.

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Shared housing could be a solution for young professionals, the elderly and low-income families with no choice but to share often squalid, unsafe facilities. Any potential solutions should provide versatile living areas, green spaces to allow for stress relief and, above all, affordability to offset sky-high rents.

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The prize of a less-connected global economy is, possibly, a more sustainable world, if countries find the incentive to conserve resources, minimise waste and switch to more environmentally efficient ways of living.

Apart from helping prevent climate change, a goal businesses have a stake in, wetlands can inspire product innovation, are repositories of rare plant species that could have commercial applications and offer business executives space to unwind.

The Ebola virus that is infecting many people in West Africa is raising ripples of alarm across the rest of the world. The World Health Organisation seems disconcertingly powerless to halt the spread of the disease, which stokes fears of a global pandemic.

Last week, Hong Kong experienced one of the hottest days so far this summer. Higher temperatures seem to be on the horizon.

Cities that strive to accommodate expanding populations must find the right amount of infrastructure suited to their needs and which meets the approval of citizens and government.