Lewis joined Barclays in 2015. Before that, he was chiefenergy economist at
Since May 2016, Lewis has also been a member of theG-20-backed Task Force on Climate-Related Financial Disclosures.
"Carbon Tracker has done so much to bring climate changeinto mainstream investor thinking and make financial marketsaware of stranded asset risk in the fossil fuel industry," Lewissaid in a statement.
"Its role in informing investors is even more importanttoday, with new EU regulations in force since January puttingextra pressure on the traditional providers of research ininvestment banks and brokerages," he said.
(Reporting by Nina Chestney; Editing by Angus MacSwan)