The Paris-based watchdog released its annual World Energy Outlook early this year to guide the United Nations COP26 climate change conference, now less than a month away.
It called the Glasgow, Scotland meeting the "first test of the readiness of countries to submit new and more ambitious commitments under the 2015 Paris Agreement" and "an opportunity to provide an 'unmistakeable signal' that accelerates the transition to clean energy worldwide."
In recent weeks, power prices surged to record levels as oil and natural gas prices hit multi-year highs and widespread energy shortages engulfed Asia, Europe and the United States. Fossil fuel demand is also recovering as governments ease curbs to contain the spread of COVID-19.
The IEA warned that renewables like solar, wind and hydropower along with bioenergy need to form a far bigger share in the rebound in energy investment after the pandemic.
Renewables will account for more than two-thirds of investment in new power capacity this year, the IEA noted, yet a sizeable gain in coal and oil use have caused the second largest annual increase in climate change-causing CO2 emissions.
The IEA said a faster energy transition will better shield consumers in the future, because a commodity price shock would drive up costs for households 30% less in its most ambitious Net Zero Emissions by 2050 (NZE) scenario versus in its more conservative Stated Policies Scenario (STEPS).
STATUS QUO VERSUS NET ZERO
Still, the leap necessary to make good on pledges in the 2015 Paris Agreement to cap the rise in temperatures to as close as possible to 1.5 degrees Celsius above pre-industrial times remains vast.
Fossil fuels coal, natural gas and oil made up nearly 80% of world energy supply in 2020 and renewables just 12%.
To keep that rise near 1.5 degrees, the IEA's NZE prediction envisions those fossil fuels shrinking to just under a quarter of the mid-century supply mix and renewables skyrocketing to just over two-thirds.
If the world stays on its current track outlined by STEPS scenario, temperatures will jump 2.6 degrees Celsius by 2100.
The IEA foresees a peak to oil demand in all its scenarios for the first time, in the mid?2030s in the STEPS forecast with a very gradual decline but in the NZE forecast plateauing within a decade and dropping further by nearly three-quarters by 2050.
Doubling down on the agency's starkest warning yet on the future of fossil fuels that it made in a May report, the IEA said its NZE picture envisioned lower demand and a rise in low emissions fuels making new oil and gas fields beyond 2021 unnecessary.
However, it did say new oil fields would be required in its two most conservative scenarios and provided tips on mitigating their climate impact like reducing methane flaring.
"Every data point showing the speed of change in energy can be countered by another showing the stubbornness of the status quo," the IEA warned.
"Today's energy system is not capable of meeting these challenges; a low emissions revolution is long overdue."
(Reporting by Noah Browning; Editing by David Gregorio) ((firstname.lastname@example.org;))