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The biggest challenge is how to get people to wake up and realize this is a one-shot deal. If we fail, we are witting participants in the biggest experiment humans have ever done: moving CO2 levels to twice their value in the past 670.000 years and hoping it turns out okay for generations to come.
Sep 10, 2025
Our CO2 mixes with everyone else's within a year, then hangs around for centuries like a shroud.
We thus find ourselves in the situation that the entire theory of man-made global warming-with its repercussions in science, and its important consequences for politics and the global economy-is based on ice core studies that provided a false picture of the atmospheric CO2 levels.
By using vertical space more effectively, you not only make more room for greenery but shorter commutes also mean less pressure on CO2 emission problems and by freeing up time now spent on unproductive commuter trains, people would have more options in their lives.
It seems that, notwithstanding the dramatic increases in manmade CO2 emissions over the last decade, the world's warming has stopped.
European carmakers pledged to reduce CO2 emissions by 25 percent from 1995 to 2008. We kept our word and reduced the value even more. This is not the result of short-term gimmickry. We decided years ago to develop the relevant models and engines, otherwise we wouldn't be able to offer them today.
I think any public policy that doesn't account for the fact that most CO2 emissions don't come from the United States, but they come from other countries, is a flawed policy. So let's not unilaterally tax our power, our people, to solve a global problem.
My view is that we don't know what's causing climate change on this planet. And the idea of spending trillions and trillions of dollars to try to reduce CO2 emissions is not the right course for us.
Undoubtedly, at the moment, the major cause of CO2 emission is what happens in developed countries.
I thought if the climate was heating that CO2 was the only forcing, and it would be late in the century before we had trouble. Now that we know about the other half of the forcing, it's obvious that the trouble is coming much sooner.
If we don't start thinking big about the CO2 problem, we may miss our opportunity to stop a climate runaway that will trash the habitable parts of the earth.
CO2 emissions have been increasing, but the rise in air temperature stopped around 2001. Climate change is due in large part to naturally occurring oscillations.
Weather patterns over the next 20 or 30 years are going to be determined by the amount of CO2 that is up there now
It is in fact necessary to reduce CO2 emissions. There is no reason why we shouldn't spend our vacations on (the North Sea island of) Sylt instead of in the Seychelles, or drive more economical cars - for the sake of preserving increasingly scarce resources if nothing else. But that won't enable us to stop climate change. As long as China, India and the United States continue the way they have been, what we Germans do is more or less irrelevant.
Many people believe the whole catastrophe is the oil we spill, but that gets diluted and eventually disarmed over time. In fact, the oil we don't spill, the oil we collect, refine and use, produces CO2 and other gases that don't get diluted.
The concentration of atmospheric carbon dioxide has changed greatly since fossilized life began on Earth nearly 600 million years ago. In fact, there is only 1/19 as much CO2 in the air today as there was 520 million years ago. That high CO2 was hardly the recipe for disaster.
On the environmental front there's concern about global warming and high levels of carbon dioxide, and trees take in CO2 and store carbon.
The pace of global warming is accelerating and the scale of the impact is devastating. The time for action is limited - we are approaching a tipping point beyond which the opportunity to reverse the damage of CO2 emissions will disappear.
If you really could take the CO2, when you burn hydrocarbons - coal, for example - if you could really capture the carbon and sequester it - they call it CCS - if the extra capital cost, energy cost, and storage costs over time didn't make it super expensive, then that's another path that you could go down.
When Arnold Schwarzenegger goes to his reward - how's that? That's a crack, but I treat Governor Schwarzenegger well in my book. He's done such great work in California; we'll forgive him one personal habit. Everybody should have one not-totally-CO2-friendly habit they can be forgiven for. So we'll forgive him that one.
Doom yourself to horrific climate change by burning all that carbon and releasing all that CO2. Or power down society, reducing total energy usage around the planet. One leads to ecological collapse. The other is a reversion, in many ways, to poverty.
People sometimes say we need to be really almost on a wartime footing if you want to change. Our whole economy is based on burning fossil fuels, which is taking CO2 out of the ground and putting it up into the air.
It's not as though we can keep burning coal in our power plants. Coal is a finite resource, too. We must find alternatives, and it's a better idea to find alternatives sooner then wait until we run out of coal, and in the meantime, put God knows how many trillions of tons of CO2 that used to be buried underground into the atmosphere.
We face the gravest threat that civilization has ever confronted. It's global in nature and requires a global solution. Increased CO2 emissions anywhere, whether from China or the United States or from one of the countries that is burning its forests like Brazil or Indonesia.
Local and state governments have outrun the federal government. The EPA has served notice that it will enact a rule requiring CO2 reductions by major emitters in the absence of major legislation. But it's a blunt instrument that is a little more difficult to use than a legislative remedy.
Organisms dont think of CO2 as a poison. Plants and organisms that make shells, coral, think of it as a building block.
Rush Limbaugh is beginning to look more and more like Mr. Big, and at some point somebody's going to jam a CO2 pellet into his head and he's going to explode like a giant blimp. That day may come.
Adding CO2 to the air is like throwing another blanket on the bed.
With this information, in light of the increasing human demands on vegetation, it is my personal opinion that capping CO2 emissions or reducing them to some prior level would be akin to 'biting the hand that feeds us.
The difference between a healthy environment and an unhealthy environment can be summed up in one word, and it's not 'CO2' or 'climate' or 'temperature.' It's 'development.' [...] Whether you're drinking clean drinking water, listening to a thunderstorm with pleasure instead of fear, or going to the Grand Canyon, you should be thanking Big Coal, Big Oil, and Big Gas.
Probably the single-most concrete and substantive thing an American, young American, could do to lower our carbon footprint is not turning off the lights or driving a Prius, it's having fewer kids...we'll soon see a market in baby-avoidance carbon credits similar to efforts to sell CO2 credits for avoiding deforestation.
Statistics compiled by the German Federal Motor Transport Authority highlight how successfully we have reduced fuel consumption. A few years ago, the CO2 emissions for the BMW brand were at well over 200 grams per kilometer. In 2009, that number was at 159 grams. This puts us below our direct competitors.
I believe the earth gets warmer, and I also believe the earth gets cooler, and I think history points out that it does that and that the idea that man through the production of CO2 which is a trace gas in the atmosphere and the manmade part of that trace gas is itself a trace gas is somehow responsible for climate change is, I think, just patently absurd when you consider all of the other factors.
It is a search for a mythical CO2 sink to explain an immeasurable CO2 lifetime to fit a hypothetical CO2 computer model that purports to show that an impossible amount of fossil fuel burning is heating the atmosphere. It is all a fiction.
No chemical compound in the atmosphere has a worse reputation than CO2, thanks to the single-minded demonization of this natural and essential atmospheric gas by advocates of government control and energy production. The incredible list of supposed horrors that increasing carbon dioxide will bring the world is pure belief disguised as science.
We allow it to be dumped into this community asset, which is our one and only atmosphere. So that has to change, and there's really only one entity that can do that. So we have proposed a cap-and-trade system to stop that unlimited pollution, to use the forces of the market to efficiently allocate scarce permits to allow CO2 into the atmosphere. That's just one of 500 things we need to do, but it's probably the granddaddy of them all.
The nuclear approach I'm involved in is called a traveling-wave reactor, which uses waste uranium for fuel. There's a lot of things that have to go right for that dream to come true - many decades of building demo plants, proving the economics are right. But if it does, you could have cheaper energy with no CO2 emissions.
Through the discovery of Buchner, Biology was relieved of another fragment of mysticism. The splitting up of sugar into CO2 and alcohol is no more the effect of a 'vital principle' than the splitting up of cane sugar by invertase. The history of this problem is instructive, as it warns us against considering problems as beyond our reach because they have not yet found their solution.
NASA's Aqua satellite is showing that water vapor, the dominant greenhouse gas, works to offset the effect of carbon dioxide - CO2. This information, contrary to the assumption used in all the warming models, is ignored by global warming alarmists.
Global warming alarmists invariably try to make their case by resorting to rhetoric, dogma, opinion, and emotion. The closest thing to scientific data in their articles is the occasional chart claiming a poorly understood correlation between atmospheric CO2 and the Earth's temperature.
Does it make more sense to provide air conditioning or to limit CO2 emissions. I vote for more air conditioning in these susceptible regions.
For me the two biggest issues are climate change and animal welfare/animal agriculture. And oddly enough animal agriculture is such a contributor to climate change. According to the United Nations, 25% of climate change comes from animal agriculture, so every car, bus, boat, truck, airplane combined has less CO2 and methane emissions than animal agriculture.
I'm not a global warming believer. I'm not a global warming denier. I'm a global warming agnostic who believes instinctively that it can't be very good to pump lots of CO2 into the atmosphere but is equally convinced that those who presume to know exactly where that leads are talking through their hats.
Only by advocating 'politically unrealistic' CO2 concentrations can runaway global warming be avoided. But what is politically realistic for humans is whollymunrelated to what is physically realistic for the planet.
We can no longer completely avoid anthropogenic climate change. At best, limiting the temperature rise to two degrees is just about possible, according to optimistic estimates. That's why we should spend more time talking about adjusting to the inevitable and not about reducing CO2 emissions. We have to take away people's fear of climate change.
What is the environmental policy of the Republican Party? When I ask that question, I get a blank stare, if I'm president of the United States, we're going to address climate change and CO2 emissions in a business-friendly way.
Ocean acidification - the excess carbon dioxide in the atmosphere that is turning the oceans increasingly acid - is a slow but accelerating impact with consequences that will greatly overshadow all the oil spills put together. The warming trend that is CO2-related will overshadow all the oil spills that have ever occurred put together.
It's important to see things in perspective. Automobile traffic is responsible for only 12 percent of total CO2 emissions. One should be able to point this out without being accused of changing the subject.
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.
I think all countries need to aim to cut the CO2 emissions per person, taking account of externalities like imports and exports.