Alok Sharma has been appointed as Secretary of State for Business, Energy and Industrial Strategy (BEIS) as well as Minister for the COP26 climate summit taking place in Glasgow later this year.
Sharma was promoted from worldwide development secretary to secretary of state for business, energy and industrial strategy as part of a cabinet reshuffle, and also made minister for COP 26.
"We recognise the targets will not be easy", she said, "the process of decarbonization should be handled very differently to the deindustrialization of communities in the 1970s and 1980s".
"I'm particulary proud of my work in BEIS on net zero and the #CountDowntoCOP and on making the United Kingdom the best place in the world to work and grow a business", she wrote, adding she will continue from the back benches to work to ensure "everyone is treated with dignity and respect". "Our climate, and the UK's reputation, can not afford someone who is so lukewarm on biggest challenge we face", she said on Twitter.
He trained as an accountant and worked in banking before becoming an MP for Johnson's Conservatives in 2010.
Mr Sharma held the International Development Secretary role since July 2019 prior to working as Employment Minister at the Department of Work and Pensions.
O'Neill was a former minister but was not inside government when she was made COP president. Johnson said he wanted to bring the role into the heart of government.
O'Neill responded to her forced exit with a withering critique of Johnson's leadership, saying that planning for the COP 26 summit was "way off track" and suggesting he did not understand climate change.
"You promised to "lead from the front" and asked me what was needed 'money, people, just tell us!'".
It has been confirmed talks have been held with the ExCeL centre in London about hosting the summit instead of Glasgow's Scottish Events Campus.
SCOTTISH politicians are demanding the British government goes ahead with a crucial UN Climate Summit in Glasgow over fears it will be moved to London.
Scotland's First Minister Nicola Sturgeon accused the PM of "playing politics with the biggest issue of our time".