How
Energy
We must end all fossil fuel power generation and replace with offshore and onshore wind, solar, tidal, wave and hydro power, combined with storage to balance supply with demand. Energy consumption must be reduced through efficiency improvements, smart systems and intelligent grids. Heat needs to be electrified through heat pumps, geothermal, biomass, and intelligent heat or energy vector exchange systems where possible. Transport needs to be decarbonised with battery, green hydrogen and biofuel technology rollout. Construction industry needs to deploy green hydrogen and CO2 absorbing construction materials.
Atmosphere and Oceans
CO2 must be prevented from entering the atmosphere by point of source (industrial stacks) capture, and direct air capture using natural resources, improved land management and modern technologies. CO2 must be removed from the oceans as they are acidifying fast and by 2050 may reach 7.95ph so not sustain carbon lifeforms, marine life will die and our food supply will be gone. CH4 must be captured at point of source, landfills, leaks and melting permafrost.
De-toxification
Micro plastics and forever-toxins on the ocean surface are preventing water evaporation which is likely 50%+ the cause of climate change. We must prevent micro-plastics and forever-toxins from entering the ocean by improving our water treatment systems and removing these chemicals from our industrial and lifestyle ecosystems.
Water and Food
Droughts and floods will destroy global agriculture, and subsequently the food chain. We must reduce our meat consumption and move away from a global food network. We must be able to produce water and food with minimal natural resource, in tough future climates, to ensure local supply. This will involve a myriad of new technologies many still in early phase development.