Climate: The differences between Kamala Harris and Donald Trump

As the world’s top athletes gather in Paris, the Olympic motto of “Higher, Faster, Stronger” could use one more superlative: “Cleaner.” If there were a gold medal for the Herculean task of improving the health and livability of a city, it would go to Paris itself – and tenacious mayor Anne Hidalgo – for an audacious decades-long green revolution based on the conviction that cities belong to people