Obasi said it is feared the same equation would hold true with respect to heatwaves.

CNN: Global warming may 'double heat deaths'

Obasi scored twice in the 4-1 semi-final win over Belgium, but missed the final because of a shin injury.

BBC: Messi makes the difference

Other cities around the world expected to see burgeoning deaths from heat include Toronto, Shanghai, Athens and Madrid, Obasi said.

CNN: Global warming may 'double heat deaths'

Nigeria had their chances, primarily down the left where makeshift Argentine right-back Jonas Gutierrez was often exposed, but forward Chinedu Ogbuke Obasi was wasteful.

BBC: Argentina 1-0 Nigeria

Ghanaian centre-half Isaac Vorsah found himself head-to-head with his Hoffenheim team-mate Chinedu Obasi - and the Ghanaian will have bragging rights when they return to Germany.

BBC: Ghana 1-0 Nigeria

Chinedu Obasi and Yakubu fluffed decent scoring chances in the box before Sessegnon threatened to open the scoring for the Squirrels with a delightful effort in the 38th minute.

BBC: Nigeria 1-0 Benin

He missed a glorious chance of his own a few minutes after that, but with 20 minutes to go a huge strike from distance from Obasi put the game beyond Belgium.

BBC: Slick Nigeria crush sorry Belgium

In the 15 biggest U.S. cities an average of 1, 500 people collapse and die from heatwaves each year, a significant increase over the past decade, Obasi said, without giving previous comparative figures.

CNN: Global warming may 'double heat deaths'

While Nigeria's performances at the Africa Cup of Nations in Angola were lacklustre, there is no denying that players such as Chinedu Obasi, John Obi Mikel and Osaze Odemwingie have the potential to make the same kind of impact on the world stage as some of their illustrious Nigerian predecessors.

BBC: Why Trapattoni would suit Nigeria