diff --git a/module3/exo3/co2_mlo_oscillation-moyenne.png b/module3/exo3/co2_mlo_oscillation-moyenne.png new file mode 100644 index 0000000000000000000000000000000000000000..00967f8567aac5bbd59ae3eca8026d6cae52693d Binary files /dev/null and b/module3/exo3/co2_mlo_oscillation-moyenne.png differ