(FILES) In this file photo taken on October 20, 2019 a public transport bus drives in a flooded Agege Motor Road, in the local Government Area of Mushin town, Lagos. – Severe climate impacts will unavoidably ravage nature and humankind by mid-century or sooner, according to the draft of a landmark report from the UN’s climate science advisory body obtained by AFP.Species extinction, ecosystem collapse, crippling health impacts from disease and heat, water shortages, migration from cities devastated by rising seas — all will accelerate in the coming decades no matter how rapidly the carbon emissions that drive global warming are cut, the Intergovernmental Panel on Climate Change (IPCC) finds. (Photo by PIUS UTOMI EKPEI / AFP)The massive floods that brought movement and commercial activities to a standstill in Lagos over the previous weekend did not come as a surprise given that efforts to stem the recurrent annual flooding in the teeming mega-city have been less than adequate.