We have an atmosphere that is roughly 21% oxygen. The rest of it is largely nitrogen. There's just enough carbon dioxide (CO2) to drive photosynthesis. That has been, throughout the history of our species, pretty stable. Until recently.
The burning of fossil fuels has altered the amount of carbon dioxide in the atmosphere so rapidly and so abundantly that now, we are driving not just the warming trend, not just the sea level rise that is a consequence of the warming trend that is melting polar ice and alpine ice, but also [ocean acidification].
If you choose to make regulations about carbon dioxide, that's OK. You as a state can do that; you have a right to do it. But it's not going to do anything about the climate. And it's going to cost, there's no doubt about that."
I am quite surprised and rather disappointed by the loneliness, isolation and indeed demonisation the sadly misunderstood CO2 is experiencing. Thus, upon leaving the parliament, I am contemplating the foundation of an organisation called 'The Friends of Carbon Dioxide'. Membership will of course be open to all, including the plants whose very existence depends on CO2. I think this organisation's slogan, 'CO2 is not pollution', self-selects. It has both accuracy and melody to commend it.
Is there some magic wand they can wave on it and presto! - physics is overturned and carbon dioxide doesn't trap heat anymore? And when we see all these things happening on the Earth itself, what in the hell do they think is causing it? The scientists have long held that the evidence in their considered word is "unequivocal," which has been endorsed by every national academy of science in every major country in the entire world.
Air is one we hold in common; it has a limited carrying capacity for pollutants and that's being used up by those who pollute the atmosphere. So we have to stop that externality. We would never allow a utility to put their coal slag in a dump truck and back it up to the city park and dump it in unlimited amounts for free. But that is exactly what we do with carbon dioxide and methane.
1.5 billion people lack proper access to electricity. Many buy kerosene, which can cost 30 percent of their income. It sends millions of metric tons of carbon dioxide into the atmosphere every year. And often the lamp will fall over and catch the house on fire. So mothers hate it, but it's their only option.
We have to, in the next ten years, begin to decrease the rate of carbon dioxide emissions and then flatten it out. If that doesn't happen in ten years, we're going to be passing certain tipping points. If the ice sheets begin to disintegrate, what can you do about it? You can't tie a rope around an ice sheet.
Many of our actions degrade our habitat because we undertake them in order to reach goals whose allure blinds us to myriad dire consequences. In order to fuel our complex civilizations, we are lacing our planet's atmosphere with carbon dioxide, a greenhouse gas that, if it has not already begun doing so, will soon warm the Ice Age climate to which we owe our very existence.
I think the deeper truth is that the Kyoto Protocols will not be followed by anyone really and that, in effect, nothing will be done to reduce carbon dioxide and other greenhouse emissions.
I am hoping that the scientists and politicians who have been blindly demonizing carbon dioxide for 37 years will one day open their eyes and look at the evidence.
I don't like being called a denier because deniers don't believe in facts. There are no facts linking the concentration of atmospheric carbon dioxide with imminent catastrophic global warming there are only predictions based on complex computer models.
I do remain optimistic that one day the world will realise that carbon dioxide is more of a friend than an enemy to the earth's flora and fauna, and I do seriously believe that, given the extraordinary complexity of the natural forces controlling our climate, which have done so for millions of years, the only sensible policy response to the natural process of climate change is prudent and cost-effective adaptation.
I must say that when I first learned of the existence of the Australian Greenhouse Office, I assumed it was responsible for supplying tomatoes to the Parliament House kitchen. But, no, as I soon learnt as industry minister, it was in fact a government funded redoubt of veritable soldiers in a war against carbon dioxide. The zealotry and obsessive passion of these warriors in the battle against the apparent evils of carbon dioxide remains a curiosity to me. After fighting these people for three years as industry minister, I really did wish they would just go away and grow tomatoes.
One of the reasons the United States has actually been reducing its emissions in recent years is actually that there's been a boom in natural gas. It's displacing coal. It emits less carbon dioxide when you burn it. This is not really an Obama policy. It's just something that happened because of technology and the free market.
... those who are absolutely certain that the rise in temperatures is due solely to carbon dioxide have no scientific justification. It's pure guesswork.
For the last 16 years, temperatures have been going down and the carbon dioxide has been going up and the crops have got greener and grow quicker. We've done plenty to smash up the planet, but there's been no global warming caused by man.
The coal plants that will be built from 2005 to 2030 will release as much carbon dioxide as all of the coal burned since the industrial revolution more than two centuries ago.
Too many cars, too many factories, too much detergent, too much pesticides, multiplying contrails, inadequate sewage treatment plants, too little water, too much carbon dioxide - all can be traced easily to too many people.
Whether carbon dioxide is quite the environmental villain that some people make it out to be is not yet proven.
We can't conclusively say whether man-made carbon dioxide emissions are contributing to climate change.
Carbon dioxide is....being portrayed as a pollutant; in fact, it makes things grow, and it is not toxic to humans.
We thought we knew 20 years ago. That led to some alarmist books – mine included – because it looked clear-cut, but it hasn’t happened. The climate is doing its usual tricks. There’s nothing much really happening yet. We were supposed to be halfway toward a frying world now. The world has not warmed up very much since the millennium. Twelve years is a reasonable time. The temperature has stayed almost constant, whereas it should have been rising - carbon dioxide is rising, no question about that.
The scientific facts indicate that all the temperature changes observed in the last 100 years were largely natural changes and were not caused by carbon dioxide produced in human activities.
Human releases of carbon dioxide are almost certainly happening faster than any natural carbon release since the beginning of life on Earth.
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