Speaking on common regional changes, he said: “Mean temperatures and hot extremes have emerged above natural variability, relative to 1850 to 1900, in all land regions in Africa.

T he number of people living in urban areas has tripled in the last 50 years, meaning when a major natural disaster such as an earthquake strikes a city, more lives are in danger. Meanwhile, the ...

The day after Christmas in 2004, a 9.1 magnitude earthquake under the Indian Ocean triggered tsunami waves that killed some 230,000 people across a dozen countries.