Role of the oceans is fundamental to climate change
Doug Hurst (Letters, 12/10) is quite correct; understanding the role of the oceans in climate is a fundamental key to realising that carbon dioxide mitigation is pointless. Oceans hold a great deal of CO2 — much more than the atmosphere. Numerous climate studies have demonstrated that CO2 moves into and out of the ocean surface driven by temperature, not the other way round.
That CO2 change follows temperature change was first documented in the journal Nature in 1990 and has been validated by many other comprehensive studies.
Cause must precede effect, hence it is difficult to see how CO2 emissions can cause any measurable temperature change. Therefore the Paris emission reduction targets are a luxury we could safely do without. Jim Brooks, Toorak Gardens, SA Tony Abbott is right (“Amish ways good for some — the rest of us need power”, 10/10). The global warming scare started at about the time the UN Inter-governmental Panel on Climate Change published its famous hockey-stick chart which exagger- ated temperature rises in the future. Now we are stuck with all of the hype and crippling legislation leading us into oblivion while the big polluters, operating under different rules, power on. Countries that tried to be green and cover their land with wind towers are now suffering, Spain being one such loser.
Those expensive turbines can and do fail. Because Australia produces only 1.3 per cent of the world’s carbon dioxide, we should not be leading the world in hardship.
We should be following China’s move and building modern coal-fired power stations to get us through to the 2030s, at least.
No more handouts designed to make some individuals rich without reducing the world temperature. Peter Condon, Southport, Qld
After a lull, the letters page is again full of climate change commentary, ignoring the World Health Organisation warning:
“Although global warming may bring some localised benefits, such as fewer winter deaths in temperate climates … the overall health effects of a changing climate are likely to be overwhelmingly negative.”
I must assume your letter writers are sincere and have the public interest at heart. But by any balanced review of the evidence — far too extensive to review here but widely available to all — they are wrong. We’re not on the brink of an ice age, the sun is not the main factor, fossil fuels have increased carbon dioxide levels that are warming the planet.
Let’s not leave it to Chris Roylance to be the token responder. Charles Worringham, Chapel Hill, Qld
Why all the outrage over unremarkable comments by Tony Abbott? We know our emissions make no difference to global warming, but I support the view that we should continue to be a good world citizen even if our efforts appear to be futile.
As energy production accounts for only about 30 per cent of our emissions, why not quarantine our energy sector from any impediment that would prevent action on reducing energy costs and optimising energy security until we are back on our feet?
In light of the potential catas- trophe of a failed energy sector, surely applying our best endeavours to reducing the remaining 70 per cent of our emissions would be seen as a fair contribution to the international effort on addressing climate change. Denzil Bourne, Jerrabomberra, NSW
It would appear that Tony Abbott’s conclusion about deaths relating to cold compared to heat failed to include all those people who have died because of drought, flood, fire and famine, due to extreme weather.
It is too easy to see things from a Western-centric perspective. It would also appear that he is incapable of understanding the difference between weather and climate.
No one denies that climate change is a complex issue, involving a number of inter-related aspects including ocean currents, solar radiation, deforestation and pollution, but to say that CO2 isn’t a critical component is absurd in the extreme. The bottom line as far as fossil fuels is concerned is that they will run out and we will need a viable alternative unless you are drawing a line under human existence. Roger Bridgland, West Hobart, Tas