Tessa Khan: Climate change is the greatest threat to the enjoyment of our human rights

Dr Katharine Wilkinson: The climate crisis is a leadership crisis

Cristina Zenato: Never underestimate the "power of one"

Dr Tara Shine: Women leaders bring to the table a greater sense of legacy

Captain Paul Watson: We have created an economy of extinction

Hindou Oumarou Ibrahim: Women and Indigenous peoples can help win the war on climate change

Sunita Narain: It’s coyness that’s killing action on climate change

Susie Crick: Oceans have no borders. We all live downstream

Dr Rupert Read: If you don’t care about non-human life you don’t care about human life

Caroline Lucas: Future generations will look back in utter despair

Jojo Mehta: Putting mass damage to nature on a par with mass damage to people creates an equivalence

Ali Keskitalo: We will be eradicated

Sir Tim Smit: People could be paid to be champions of the natural world

Rachel Kyte: Design solutions for the most vulnerable and poorest first

Hugo Tagholm: We can’t litter pick our way out of the problem

Juliet Davenport: Unless politicians hear from people that they want change, nothing will happen

Denis Hayes: If you’re wrong on climate, get out of office and put in someone who will act

John Elkington: We need more women leaders at every level in our society

David Ritter: The dead hand of the coal industry is an assault on Australian democracy

Sir Patrick Holden: The true cost of cheap food? We have only 30 harvests left

Tim Christophersen: We need the imagination to see that a different world is possible

Gleb Raygorodetsky: We are finally recognising that we are in deep trouble

Nasreen Al-amin: We have to use Indigenous knowledge

Mya-Rose Craig: Conservation today continues to be entrenched in its colonial roots

Sir Jonathon Porritt: It all comes down to whether our politicians have got the long-term vision