Written by Roger Arthur

 

~~oo~~

 

How much do our hydrocarbon emissions affect atmospheric CO2 concentrations? Look no further than at what happened during Lockdown. To recap.

1.    Impact of Human Emissions on CO2 in the Atmosphere

We know that CO2 in the atmosphere can contribute to a greenhouse effect and a rise in global temperature. But the dramatic reduction in Hydrocarbon emissions, during lockdown, did not cause a perceptible change in that concentration.

As the link below shows, human CO2 emissions dropped by an unprecedented amount in the first few months of lockdown, while the atmospheric concentration continued virtually unchanged. Looking back in time, we see further clues.

Annual Fossil Carbon production fell due to the Great Recession, from 1.2 Giga Tonnes in 1929 to 0.9 Giga Tonnes in 1932, but over the same period global temperature increased by 0.1 deg C. Also between 2002 and 2013, fossil fuel emissions accelerated, but the rate of rise in atmospheric CO2 concentrations didn’t.

Hydrocarbon use also accelerated between 1970 and 1990, while arctic air temperature fell, showing that solar radiation had more impact on that temperature, than did Hydrocarbon emissions.

2.    So what causes Global Warming?

Well the sun heats the earth and the rate of cooling at night, is limited mostly (95%) by water vapour in the atmosphere, that being the main cause of the greenhouse effect. That increase in temperature raises the atmospheric concentration of H2O – and CO2 from natural sources –  which lags global temperature variations.

In fact, global temperature rose by around 0.3 degrees C, between 1977 and 2020 (resulting in a year-on-year rise in CO2 concentration) compared with flawed IPCC model predictions of a 0.9 degree C rise average. Those are the models being used to justify the expenditure of up to £100,000 per UK household, neglecting the evidence that human CO2 emissions are not a significant contributor to atmospheric concentrations, or to global temperature rise.

Indeed it seems that water vapour is responsible for around 95% of the greenhouse effect, compared with about 1.5% or less, for CO2. So how do human-related CO2 emissions compare with natural emissions?

Well according to the Daily Telegraph March 16, one of the largest CO2 contributors is Fungi, mainly due to the decomposition of woody material. That would appear to be much greater than the total attributed to human activity.

That is not to mention the tremendous amounts of CO2 contributed by 1500 active volcanoes; the hundreds of coal-seam fires; the trillions of tons of organic matter that decompose; the rotting of billions of animal and fish corpses and other natural sources. These natural CO2 emissions seem to far outweigh human ”contributions”.

So are we really expected to believe that, the greenhouse effect of that relatively tiny amount of CO2 is keeping so much excess heat from radiating out into space?

3.    Net Zero Targets – based on Date, not Data (not following the science)

The UK has already cut its hydrocarbon emissions by more than most other G7 countries – to around 43% of 1990 levels – with a ‘cleaner’ electricity mix based on gas instead of coal, plus renewables.

Since 2004, our industrial electricity costs have increased by more than 160% and they are becoming increasingly uncompetitive. The Electric Vehicle (EV) roll out programme over the next 9 years, will only make that worse.

EV charger ratings are typically 3.5kW or more and with 20 million EVs, the peak evening charger load could be 70,000MW, which alone exceeds the current maximum demand (MD) on the National Grid. That assumes only one EV per household and that all 33m vehicles will not be replaced by EVs. To that must be added the load of electrically driven heat pumps, which replace gas-fired boilers.

Notwithstanding all that, it has been estimated that an EV would need to be driven around 50,000 miles before it breaks even with the CO2 foot print of an Internal Combustion Engine (ICE), when the average car mileage in the UK is only around 10,000 miles. Where is that covered by the government’s cost/benefit analysis?

Also since the capacity of fossil-fuelled power stations currently totals over 50% of the UK generation mix, EV charging will cause CO2 emissions for some time yet, while an emerging shortage of materials needed for EV production, looms ever larger.

So you might well ask why is the government going to spend £2 or £3 trillion to reduce human CO2 emissions, causing more fuel poverty – while driving more energy-intensive companies abroad, to the likes of China and India – where they will emit more CO2 than before? It doesn’t look like a good bang for the buck, does it?

Did you vote for your household to fork out £100,000 towards a zero-carbon target, when the whole concept (not to mention the climate change models) is so flawed? Why not ask your MP to justify the assumptions made in perpetuating this flawed policy – when the UK only emits around 1% of global human CO2 emissions?

The PM is burnishing his green credentials at enormous expense to you and your children.