By Stephanie Kelly and Scott DiSavino NEW YORK (Reuters) -Energy executives at a Reuters conference on Wednesday urged shorter-term solutions such as efficiency and conservation during the current fuel supply crunch, saying companies must scramble to meet climate targets set for 2030. Global oil and gas supplies have tightened and fuel costs have skyrocketed since Russia invaded Ukraine. The industry’s focus shifted toward supplying current energy demand, including ramping up coal production for power generation, which would increase greenhouse gas emissions. Enel Chief Executive Francesco Sta…