We shouldn't be too quick to pat ourselves on the back. While 30% of global electricity is produced by renewables and increasing quickly, net negative carbon b

We shouldn't be too quick to pat ourselves on the back. While 30% of global electricity is produced by renewables and increasing quickly, net negative carbon balance is nowhere on the horizon. A solution to this includes considerable ($20 T globally over 10 years) investment in biological- and high-efficiency, industrial-scale CCS. Carbon neutrality cannot be the goal. It must go much farther, somewhere around 300 ppm.