In 2015, nations committed to hold global warming to no more than 2° Celsius above pre-industrial levels, or preferably 1.5°.
Oil producers took issue with a prediction by the energy agency's chief that demand for fossil fuels will peak by 2030.
If accomplished, the goals are significant because the industry accounts for 2.9% of global carbon emissions. Diesel powers most of the world's 100,000 cargo ships.
Some 1,475 out of 4,000+ governments and businesses had net zero emissions targets, but "integrity" measures are lacking.
The mounting frustration and anger over inaction on climate change is compounded by outrage over the many rising inequalities around the world between rich and poor.
Driven by rising energy costs and supply uncertainties caused by the war in Ukraine, governments and businesses increasingly look to solar and wind as reliable energy sources. They will overtake coal, but not for a few more years.
The U.N. climate summit in Sharm el-Sheikh, Egypt gives industry and agency leaders an opportunity to champion nuclear power's possibilities.
From drought in the Horn of Africa to floods in Pakistan, disease outbreaks and climate-related emergencies tag alongside a global food crisis made by worse by Russia's invasion of Ukraine. All add to the pressure for real action at the 27th U.N. climate summit.
Countries set an "aspirational goal" of net zero CO2 aviation emissions by 2050 in response to pressure on the industry to do more to fight climate change.