With the election of the new American president Joe Biden, those more than a little concerned about the crisis of climate change and its clear effects on the environment took heart. This is because it’s clear President Biden intends to make the fight against climate change a central theme of his administration, and seems determine to drag the other countries with him.
This a breath of fresh and sweet air, after the frenetic and obstinate vandalism rendered by his predecessor against any positive step that had been taken in this space.
Currently, the consensus on the objective for carbon pollution is that the world does not emit carbon dioxide (CO2), the gas mostly responsible for climate change, or other gases with CO2 equivalence, into the atmosphere more than taken from it up to the year 2050.
To be crystal clear, even if all the world’s countries manage to find the courage to implement the necessary change in their economies to reach this goal, this would mean that the climate will continue changing, and on average around the world temperatures would continue to rise until 2050. That means the climate will continue to get worse and more extreme from one year to the next for at least the next thirty years!
This fight has may facets. Some initiatives are the best known, such as energy from sustainable resources like wind and solar, reduction of emissions from farming, the electrification of transport etc.
There are also other initiatives in climate engineering which are interesting, as these aim to take carbon dioxide directly from the atmosphere and change it to a useful product.
It’s an interesting concept to go to a bar after work, and allay your conscience about drinking by considering that the more you drink the better for the climate!
Using ethanol extracted from atmospheric CO2 as a fuel would also render combustion engines close to carbon-neutral in principle.
Another technology long bandied about is Carbon Capture and Storage, this is intended for conventional power stations (oil, coal or natural gas) or plants such as cement factories, where CO2 is pumped some 2km underground inside geological formulations that either have a physical barrier through which it would be unable to pass, or be chemically transformed to have the same effect. This process to date has not been proved commercially.
So far, this construction material can be utilised in concrete and not directly as slabs such as those used in Maltese construction. Just imagine a little however being possible to build structures without the need for quarries, and that your newly constructed dwelling does not mean you’ve added to the problem of climate change, but reduced it.
I’m slowly becoming more optimistic, or less pessimistic that perhaps mankind manages to save some part of the planet to the environmental disasters that we’re condemning it for. All of us reading this article when written, we will feel nothing but a deterioration of this situation, at least till 2050.
However, who knows, perhaps not our children but our grandchildren might be able to measure a reduction in frequency and/or intensity of fires and storms, farming starting becoming viable again, the sea level will stop its inexorable rise, the rate of increase of ocean acidification will stop.
Perhaps, how knows, some fragment of the Great Barrier Reef will survive, and my grandchildren might be able to dive down on it decades from now and compare the video they take (or some other technology not yet developed) under the sea surface with the one taken at the same spot by their grandfather, and find out which species of fish, turtle or other creature they were too late to see with their own eyes.
1https://aircompany.com/pages/science, retrieved 17/2/2021
2https://www.blueplanet-ltd.com/, retrieved 17/2/2021