More people are turning to renewable energy as a way to cut energy costs.
The issue features interviews with Idris Elba, Bernadine Evaristo and Baroness Lawrence.
More than 1,000 people have died since monsoons began in June, with new floods this week.
The governor-general has been dragged into a backlash over ex-PM Scott Morrison's secret ministries.
Black Tunisians tell the BBC about racism traumas, as an MP worries about advancement of black rights.
The extreme heat this summer has exacerbated the many hazards, leading to a sudden spike in deaths in Hungary.
Fuel prices are affecting volunteer community transport drivers helping elderly people in rural areas.
More than 70 days of extreme temperatures and low rainfall has spread across China causing a drought.
