By Dmitry Zhdannikov and Divya Chowdhury DAVOS, Switzerland (Reuters) – Six months after the world agreed in Glasgow to a U.N. climate pact with bold, new targets, political and business leaders facing an energy crisis, volatile markets and an economic downturn are grappling with how to cut carbon emissions. Amid soaring oil and gas prices triggered by Russia’s Feb. 24 invasion of Ukraine, some countries have turned to other fuels, including coal, to meet their energy needs. Meanwhile, financial market ructions have complicated plans to raise the trillions of dollars needed for the energy tran…