Nature

The coronavirus that is currently causing severe respiratory illness worldwide has now been named SARS-CoV-2, and the disease is COVID-19. When the virus first emerged last December, it was generally described in medical journals as the ‘2019 novel coronavirus’.

Your view that China’s re-vegetation of its deserts could exacerbate water shortages risks oversimplifying an incredibly complex eco-restoration problem (Nature 573, 474–475; 2019). Far from just planting trees in arid areas, China’s re-vegetation codes vary for different regions and greening programmes.