The Observer

Get yourself cybersecure for 2020

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With ever more tech in our lives, our data is vulnerable. Here are our six top tips to keep it safe in the new year

Rowan Moore’s best architecture of 2019

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From hemp and cork buildings to energy-efficient council housing, the climate crisis got us thinking laterally

• Read the Observer critics’ review of 2019 in full here

Gardens, waterfalls, parks… what is happening to our airports?

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From Beijing to Istanbul, exotic new airports are symbols of prestige for strongman leaders. But the environmental cost is massive…

Karl Lagerfeld remembered by Carine Roitfeld

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10 September 1933 – 19 February 2019
The French fashion editor remembers a passionate man of ideas who always remembered the small details

• Mary Warnock remembered by Onora O’Neill
• Read the Observer’s obituaries of 2019 in full

The jackets that keep you both warm … and green

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Fashion brands focus on their eco-credentials after warnings about polyester fabrics and unethically-sourced down