2025 global energy data: carbon-free energy is growing, but fossil fuel consumption keeps climbing too, and the pace of decarbonization still falls short of net-zero-by-2050 targets.
The U.K. cannot realistically hit its net-zero goal by 2050 -- the required decarbonization rate far exceeds anything achieved historically, impressive headline numbers notwithstanding.
Meaningful emissions reductions require the rate of decline in energy and carbon intensity to exceed economic growth -- carbon intensity improvements become essential for deep decarbonization.
The launch of an educational series on global decarbonization trends: despite climate policies since 1992, the rate of economic decarbonization has stayed roughly linear, with no real acceleration.
The U.S. has held a remarkably consistent linear rate of decarbonization since 1992 despite political volatility, driven mainly by coal's decline and natural gas expansion.
Decarbonization rates among the world's top 20 emitters, 1992-2022 and 2015-2022: Poland leads, but no country is on pace for its Paris Agreement target.
Using the Kaya Identity framework: global climate policies have not accelerated decarbonization rates to what would be needed to meet 2050 emissions targets.
A Kaya-Identity framework for four distinct perspectives on climate and energy policy -- future debates will turn on innovation optimism versus pessimism, not on climate science.
Chapter 4 of Roger Pielke Jr.'s book, working through decarbonization arithmetic and what emissions-reduction targets practically mean through country-level analysis.