This requires a large wealth GHG pollution tax
The natural gas industry is not a bridge to zero carbon because gas emits CO2 when burnt and the industry is a big methane emitter
Fossil fuels subsidies ($5.9 Trillion a year by IMF) are an unprecedented evil which for the survival of Humanity have to be terminated right away and shifted to non combustion energy developmentTax credits to GHG polluting fossil fuel industries (including carbon capture storage) cannot be permitted. CO2 and long-lived, constantly emitted GHGs accumulate in the atmosphere, so have to (can) be totally replaced by conversions to non polluting sources-"less" or "lower" is not good enough for climate and ocean stabilization Conversions include energy production, transport, food production/diet, construction (steel/concrete to wood) Air transport should revert to water, and ships powered by compact fission reactors like the US Navy (for decades). Only essential air flights. To stabilize climate and oceans GHG emissions drop to near zero (IPCC 2014)
Planned fossil fuel production by 2030 is more than double the 1.5C limit
45% than for 2°C (Production Gap report).Only ZERO CARBON COMBUSTION can stabilize atmospheric CO2 (and ocean acidification), so fossil fuel extraction has to stop right away and be phased out fast (fossilfueltreaty)Stop fossil fuel (and biomass) combustion in 10 yrsA full-cost carbon pollution fee is required fast increasing to $200/tonne), at central source, and invested in non-combustion energyZero future discounting has to apply In matters of GHG pollution impactsMake investment in zero carbon combustion energy tax deductible The only non GHG polluting energy dense power source alternative to coal at present is nuclear fission, so fission plants cannot be closed (can be refurbished) and safe molten salt compact reactors produced in large numbers to replace industrial coal and natural gas. Limiting to 2C requires very large, very long term removal of CO2 from the airThe only safe certain CO2 removal is by direct air extraction (DAC) that requires energy.So there is no allowable carbon budget left to burn more fossil fuels Net zero emissions and carbon neutral have to include zero fossil fuels and zero carbon combustion. Net zero means no biomass burning, even assuming carbon capture and storage (CCS). CCS after decades of attempts and government financing remains unproven, so CCS (or promise of CCS) cannot possibly be an assumed mitigationCarbon neutral, net zero, carbon offsetting and carbon trading are ways of delaying and avoiding emergency immediate slashing of emissions
Clearing forests is not net zero or carbon neutral, as clearing and burning emit forest floor and slash carbon, and it takes 25 years for a new forest to pull out carbon. Today when global emissions had to be declining, clear cutting forests is a carbon emitter. Zero deforestation is required for de-carbonization (no clear cutting)De-militarization with international peaceful co-operation is a pre-requisite for de-carbonization. Budgets expertise would be transferred for large mitigation and adaptation projects
The livestock/meat and dairy industry have to end for near zero methane and CO2 emissions (IPCC AR5) because cattle exhale methane and forests are cleared for pasture and cattle feed (CO2)
The world has to go vegan, the least GHG polluting, healthiest diet after all. Highly potent long lasting F-gases (halocarbons) have to be eliminated.Geo-engineering
Some CO2 has to be removed safely by direct air capture, but the feasible amount at best would be limited.
As catastrophe looms larger due to inaction, more attention from the science is being given to geo engineering planetary cooling. This is extremely dangerous to our future survival because it provides a false excuse for inaction on emissions. Obviously it cannot be resorted to in the absence of aggressive mitigation.
It cannot not mitigate catastrophic climate change, at best provide a short delay. There are two main reasons. Ocean acidification would continue, which alone can be catastrophic to life on land as well as in the oceans. Atmospheric GHGs would continue to accumulate in the atmosphere increasing the radiative heat forcing. Problems with climate change science that tend to minimize the emergencyThe IPCC
Other IPCC deficiencies arise because the Panel is compromised by government policy makers.IPCC global warming model projections do not include these large source amplifying feedbacks are not , which has to be corrected.
The IPCC procedures are in effect is fossil fuels biased. The IPCC assesses for probability but does not assess risk. Its single metric climate sensitivity of 3C is fatally flawed for the future. The consensus by unanimity of all scientists and polity makers results in under-estimates of harm. The IPCC makes no conclusions on dangers (claiming it can't make such "value judgments" and does not make recommendations (claiming it cannot be prescriptive"). The IPCC avoids the runaway scenario, the world now faces. The IPCC applies fossil fuels biased economics in its cost benefit calculations, still claiming mitigation is an economic cost.
National Academies presently mimic the IPCC, but are mandated to make up these deadly deficiencies to their governments
Misleading minimizing aspects of climate science
The scientists statement that stopping all GHG emissions does not result in a further temperature increase is policy misleading. From the time the world decides to reverse today's increasing global emissions, it takes a long time for stabilization. Global temperature and impacts continues to increase at a slowly reducing rate, due to socio-economic- technological lags and climate system lags. James Hansen has put both of these roughly at another 0.6C. Another 1.2C is unavoidable and the emergency is far worse than assumed. The IPCC further minimizes the situation by only taking model projections to 2100, while global warming lasts many hundreds of years. The unmasking of ignored heat from fossil fuel air pollution cooling aerosols, adds more temperature increase because fossil fuel energy has to end.