US ideas about conservation center on walling off land from use. That approach often means expelling Indigenous and other poor people who may be its most effective caretakers.

The 'good' side of our nature is much more deep-rooted than the 'evil' side.

Scientists find inequality between humans also harms the birds, the bees, the microbes and the trees.

Barriers for Black scientists won't go away without substantial funding – and measures that don't require white people to lose out.

The likes of Katie Hopkins may be slowly disappearing from social media sites but less extreme and obvious racism is still widespread.

We need a revolution in behaviour, not just in rhetoric.

In Brazil, black COVID-19 patients are dying at higher rates than white patients. Worse housing quality, working conditions and health care help to explain the pandemic's racially disparate toll.