5 lessons on building an emissions-free city ...

Ghost stories reveal much more than the ghouls and spirits that haunt them. Settle in for a spooky delight as theater educator Coya Paz Brownrigg lays out three types of bone-chilling tales and exhumes the grave truths they hold about longing, meaning and the cultural value of ee ...  Show more

Rituals for the dead span much of the natural world, seen in practices from humans and elephants to bees, dolphins and beyond. With charm and playful insight, animal behaviorist Kaeli Swift delves into the life (and death) habits of crows and shares what their responses could rev ...  Show more

Hélène Chartier (Director of Urban Planning and Design at C40 Cities Climate Leadership Group)

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"If we can unlock the full potential of our cities, we can minimize the price the planet pays for hosting us in our growing numbers," says Marvin Rees, the Mayor of Bristol, UK. Rees notes that while sustainable infrastructure already exists in many parts of the world -- like ele ...  Show more

We know that to keep our climate safe we need to stop burning fossil fuels and move to renewables. But how? Leading scientists and government delegates have been asking that question this week at a gathering in South Korea. Perhaps inspiration can be found in Tromso, in the Norwe ...  Show more