Much of Africa is likely to exceed a 2°C rise and more likely to see a 3-6°C rise by 2100 if high emissions continue. That's far beyond the temperature rise limited by the 2015 Paris Agreement.
Long-term exposure to high levels of air pollution can make people more susceptible to COVID-19.
"Nature-based interventions could be prescribed to assist individuals attempting to give up smoking," says lead author Leanne Martin.
Even a small garden makes a difference, a researcher says.
"This is potentially a very valid problem that shouldn't be overlooked," says one scientist.
Songbirds began singing more joyfully again and changing their tunes in the process as males tried to woo females.