44 Time September 23, 2019
An $8 billion planting project to combat
the effects of climate change in the Sahel
By Aryn Baker/Mbar Toubab, SenegalThe GreatGreen Wallof AfricaAFRICA
1910s 0.32°Difference
in Africa’s
average
temperature (°C)
by decade,
relative to a
1910–2000
average1920s
1930s
1940s
1950s
1960s
1970s
1980s
1990s
2000s
2010s