Video: Greenwash and spin over coal

Sorry cannot follow this point. The technical argument at the indicated link shows that ocean acidification will increase as a result of an exponential increase in the concentration of CO2 in the atmosphere and the subsequent absortion of CO2 from the atmosphere into the sea water. The link gives the basic chemical reactions that would lead to the reduction of the seawater pH and its acidification but it does not include any information on the individual reaction kinetics and how the processes are influenced by physical conditions such as pressure, tempe rature and concentration variations.

However, the whole point of Carbon Capture & Storage is that it will significantly reduce the concentration of CO2 in the atmosphere and therefore reduce ocean acidification. Frankly I think there is more likely to be a measurable benefit from rediced CO2 emissions on sea acidification than global temperatures. I have yet to be convined that the CO2 effect on temperatures is effectively reversible and reducing CO2 will do what we hope it will do. It is proven that increasing atmospheric CO2 has led to increasing global temperatures - I've not seen anything nearly so convincing that reducing CO2 emissions will definitely reverse the temperature trend. We should hope that it does but start thinking what we are going to do if it doesn't. At the oment we ae putting all our hope on that strategy what if it doesn't work? I think we are also over optimistic about the effectiveness of renewables and increased efficiency - nothing I've seen yet convinces me that maximised energy efficiency and maximised renewables will be enough because of one factor that we still have no effective control on - world population. One billion people at the end of the 19th century has grown to over 6 billion now and even with recent reductions in population increase it seems possible that it could reach 9 billion in the next 90 years. The most basic requirement for human existance is sufficient drinking water and shortages are already developing. Provision of sufficient water to sustain life will require the consumption of vast amounts of new energy, most probably more than than we will save through economies. Global warming is not the biggest threat to the earth but it is a symtom of it - the threat is us - too many of us

Sorry cannot follow this point. The technical argument at the indicated link shows that ocean acidification will increase as a result of an exponential increase in the concentration of CO2 in the atmosphere and the subsequent absortion of CO2 from the atmosphere into the sea water. The link gives the basic chemical reactions that would lead to the reduction of the seawater pH and its acidification but it does not include any information on the individual reaction kinetics and how the processes are influenced by physical conditions such as pressure, tempe rature and concentration variations. However, the whole point of Carbon Capture & Storage is that it will significantly reduce the concentration of CO2 in the atmosphere and therefore reduce ocean acidification. Frankly I think there is more likely to be a measurable benefit from rediced CO2 emissions on sea acidification than global temperatures. I have yet to be convined that the CO2 effect on temperatures is effectively reversible and reducing CO2 will do what we hope it will do. It is proven that increasing atmospheric CO2 has led to increasing global temperatures - I've not seen anything nearly so convincing that reducing CO2 emissions will definitely reverse the temperature trend. We should hope that it does but start thinking what we are going to do if it doesn't. At the oment we ae putting all our hope on that strategy what if it doesn't work? I think we are also over optimistic about the effectiveness of renewables and increased efficiency - nothing I've seen yet convinces me that maximised energy efficiency and maximised renewables will be enough because of one factor that we still have no effective control on - world population. One billion people at the end of the 19th century has grown to over 6 billion now and even with recent reductions in population increase it seems possible that it could reach 9 billion in the next 90 years. The most basic requirement for human existance is sufficient drinking water and shortages are already developing. Provision of sufficient water to sustain life will require the consumption of vast amounts of new energy, most probably more than than we will save through economies. Global warming is not the biggest threat to the earth but it is a symtom of it - the threat is us - too many of us