Every point raised by Ted O’Brien (“Labor’s Trojan horse carbon tax”, February 15) can be comfortably rejected as groundless. High prices in Europe don’t mean their emissions scheme is “not working”, Europe’s energy supply is vulnerable because of the impact of Russia’s invasion, a “fast rate of decline” is what is needed, the electricity sector in Australia is reforming quickly, so arguably does not need to be part of the scheme.

That “the technology simply doesn’t exist” surely justifies the imposed driver for change to encourage innovation and development. Sitting on the fence as the planet overheats, as in the past decade, will achieve nothing.