How many more signs do we need to tell us we must urgently reform our economies, keep essential services out of private hands and transition away from fossil fuels? As the world buckles up for a different crisis tackling the Coronavirus, we look at how tax justice is key to all economic reform in the public interest, and solving the climate crisis - any crisis - is impossible without it. We speak to Dr Gail Bradbrook, co-founder of Extinction Rebellion on her vision of hope, and John Christensen of the Tax Justice Network.