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Gravity theory has uncertainties too.  So jump off a cliff?

Bite"Science isn't "yes or no." Science is gradually reducing uncertainty. Consider gravity. We know gravity with a fairly high degree of understanding but there are still little areas of gravity theory that scientists are still arguing about exactly how it works. But just because scientists don't h...
CO2 is benign because we exhale it?   So tsunamis are OK...

Bite"Let me address the argument that CO2 is benign because we exhale it. That's about as good an argument as saying a tsunami isn't dangerous because we drink water."— -- Rep. Jay Inslee at a 2011 committee hearing
A cold winter proves the earth isn't warming?

BiteSaying global warming isn't real because last winter was cold and snowy, is like saying that spring's not happening because Friday was cooler than Monday. You have to look at the longer trend.
A warming planet doesn't get rid of winter

Bite"People across the northern hemisphere are facing the fact that a warming planet doesn't get rid of winter ... now is a good time to remind ourselves that weather, like death and taxes, will always be with us." — Robert Henson, University Corporation for Atmospheric Research
Coral:   Don't worry; it's not cancer (it's coronary thrombosis)

BiteTelling the inhabitants of a coral that island that they're safe because sea level won't rise, is like a doctor telling a smoker, "stop worrying, you aren't going to die of lung cancer", while knowing full well that they're doomed to die from a coronary thrombosis. Ocean acidification (OA) and b...
Al Gore wastes energy, so global warming is a hoax?

BiteOne man's personal choices tell you nothing about the validity of the science. It's like saying, "Louis Pasteur sometimes neglected to wash before meals, so that proves that bacteria don't cause disease."
Why Woolworth's?  Drinking coffee won't end racism!

BiteSaying 'stopping the Keystone pipeline won't stop global warming,' is like a civil rights skeptic saying in 1960, 'Why Woolworth's lunch counter? Getting served a cup of coffee won't end racism.'
Applying the brakes on a foggy road is not alarmism

Bite"I wouldn’t characterize wanting to use the brakes on a foggy road as hysteria. Humanity is simply driving too fast for the conditions ahead, and should be more cautious."
'Little old us? We're not important enough to alter the planet.'

BiteHumans have overrun the planet to live in every ecosphere. We have had a dramatic impact on natural resources in every land we have colonised. But our impact pales in comparison with plankton.
Better to adapt than mitigate?   And keep smoking?

BiteBetter to adapt than mitigate? This is like saying 'It's better to smoke, get cancer, then spend years in chemo- and radiotherapy, than to simply quit smoking and get healthy.'
An extra 2°C and you'd have a fever!

Bite"When we look at the last 4 decades, we've seen 0.5°C global warming. Some people say, 'well that's not much!' Then I tell them to think of their bodies: 2°C extra and you'd have a fever. An extra 4°C and you'd be dead!"—Prof. Hans Joachim Schellnhuber.
Cold snap?   A dark night disproves lengthening days?

BiteDoes a winter cold snap disprove global warming? That's like saying in April, "Don't tell me the days are getting longer. Look how dark it is tonight!"

Wide short-term fluctuations can mask a slow, long-term trend. Global warming won't eliminate winter, any more than long summer...
Consensus?  97+% of climate researchers support IPCC

Bite"...97–98% of the climate researchers most actively publishing in the field support the tenets of ACC [anthropogenic climate change] outlined by the Intergovernmental Panel on Climate Change..." —Anderegg, Prall, Harold, & Schneider (PNAS, 2010).
China pollutes more?   Therefore we should keep polluting too?

Bite"This is like saying that if someone else drops more litter than you, then it's OK for you to drop litter."—Dr. Richard Milne
Cold winter in Europe.   Did you check Siberia?

BiteCold winter in Europe, but warm in Siberia. So this disproves AGW? That's like saying: 'My keys were in my jacket, now they're not. That proves they're lost. (But have you checked your other coat? your pants?)
Temperature change is like walking the dog.

BiteWhen CC walks his dog, he moves in a straight line, but his dog, TC, tugs on the leash and wanders right and left. TC is Temperature Change (short term variance) and his owner, CC, is Climate Change (long term trend). Of course, they both arrive at the same destination.
Tax carbon! Can restaurants throw their thrash into the street?

BiteFossil fuel industry is the only industry on earth throwing its waste out for free. If you run a restaurant, you have to pay someone to cart away your garbage. - inspired by Bill McKibben
2012 drought natural? Blame the car engine for a speeding ticket?

Bite"Blaming La Nina for the record drought is like blaming the car engine for the speeding ticket. See what happens when the driver steps on the gas?" - Hunter Cutting, Director of Strategic Communications at Climate Nexus
Natural cycle? Even the dinosaurs would disagree

Bite"The last time climate change happened this fast was the Cretaceous (time of the dinosaurs) and the oil was being made then." - Stephanie Carter, park ranger at Crater Lake National Park
Don't like big government? Then act now to solve climate change

Bite"I do not want the government telling me what to do. But, the longer we wait, the worse this problem gets...then you are going to see a lot of government interventions that you do not want to see at all." — Naomi Oreskes.
Global Warming paused since 1998?  Paws are for puppies & kittens

Bite‘People ask me: Is there a pause in global warming? My response: paws are for kittens & puppies. Global warming is still increasing.’ - Joshua Willis NASA Climate Scientist
More CO2 is good?  Try telling a farmer that...

BiteFarmers know that plants grow best when all their needs are in balance, not just more and more CO2. Crops also need water, nutrients, correct temperature, pollination, weed & pest control, etc.

Global warming means more droughts and floods. No amount of CO2 will grow corn in a ...
We're not first.   Pond scum did it 2 billion years ago!

BiteHuman's aren't the first species to alter the atmosphere; that distinction belongs to cyanobacteria, (blue-green algae) which, some two billion years ago, invented photosynthesis. But we are the first species to be in a position to understand what we are doing.
CO2 is only a trace gas.   And arsenic is "only a trace" element.

BiteSaying that CO2 is "only a trace gas" is like saying that arsenic is "only" a trace water contaminant.
It's stopped warming?   Waves vs. tides.

BiteHave you ever stood on a beach and watched the tide coming in? The long-term trend (the water level steadily rising) is hidden behind short-term variability (the size of waves washing up the beach).
Cold winter?   He won 2 hands of poker and thinks. . .

BiteSaying a cold winter disproves long-term global warming is like the guy who wins two hands of poker and thinks he's figured out how to 'beat the house.' Time to double down on his bets, right?
I am not an alarmist, but I am alarmed.  You should be too.

Bite"The excess CO2 that is pumped into the air today will affect our planet for thousands of years into the future. I am not an alarmist, but I am alarmed. You should be too."—Dr. Stephen Mulkey.
Still wearing those 1970s outdated disco clothes?

BiteJust as bad as wearing outdated disco clothes is believing this outdated idea: 'scientists still disagree if humans are causing climate change.'
Past climate change is no comfort.  It's cause for concern.

Bite"Past climate change is not a source of comfort. It's a cause for concern."— John Cook
New theory? 1965, Pres. Lyndon Johnson warned about climate change

Bite"This generation has altered the composition of the atmosphere on a global scale through...a steady increase in carbon dioxide from the burning of fossil fuels." - President Lyndon Johnson, special message to Congress, February 8, 1965.
'Clean Coal'; a breakthrough —in marketing?

Bite" 'Clean coal' represents a breakthrough —in the marketing of coal. But it does not represent a breakthrough in the burning of coal." —Van Jones
"Climate is always changing... !"

BiteSure, the climate always changes—just like asteroids have always hit the Earth. But does that mean that a big asteroid hitting the Earth today would not have a serious impact on human civilisation, just like the one that wiped out the dinosaurs, 65m years ago?
Geoengineering:   Is heart surgery better than a good diet?

Bite“Is heart surgery preferable to a good diet? Of course not. Let’s go for the good diet.”—Bill Gates, on geoengineering.
Reject a newspaper article because of a typo?

BiteJust as silly: 'hyping real or imagined errors that make no difference to any significant scientific conclusion.' - Dr. Michael E. Mann
Psst...Guess what I heard from the watergate burglars!

BiteDo you believe information provided from the Watergate Burglars? No, neither should you believe computer hackers who steal private e-mails from scientists.
Scientific consensus matters; even Galileo made mistakes.

BiteGalileo championed the idea that Earth revolves around the sun, but some of his evidence was later proven wrong. Today, peer review and consensus are how science errors get corrected. "People who say science is not about consensus, do not understand science."
"If I were wrong, then one would be enough." — Albert Einstein

BiteIn 1931, a book was published, "100 Authors Against Einstein." Albert Einstein's response: "If I were wrong, then one would be enough."
A natural cycle?  Mother Nature disagrees!

Bite"It's getting warmer. Storms are getting stronger...and it's getting harder to say this is an accident of nature" — Dr. Stephen Schneider.
Like quitting your job and playing the lottery to pay the bills.

Bite"The odds that natural variability created these [recent weather] extremes are minuscule... To count on those odds would be like quitting your job and playing the lottery every morning to pay the bills."—Dr. James Hansen, NASA
A political issue? Ultimately, it's an argument of humans vs. physics

Bite"(Climate Change) is ultimately an argument of humans vs. physics. It is not Republicans vs. Democrats, liberals vs conservatives, or environmentalists vs. industry. This issue is about whether the planet can live compatibly with our complex human brains." - Bill McKibben, climate activist and fou...
Volcanoes? That’s like blaming climate change on Santa Claus

Bite“It’s a bit like asking us to believe in Santa Claus after we have seen our parents putting the presents under the tree.” – Naomi Oreskes, Professor of Science History at the University of Califormia (San Diego)
Keep using fossil fuels?  That 'gas tank' will soon be empty

BiteWe burn fossil fuels a million times faster than nature created them. Sooner or later, we will run out. — inspired by Dr. Richard Alley on his PBS special, "Earth: The Operator's Manual."
Reject climate change? That harms your beach house & your kids

Bite'If you dismiss all climate science as a hoax, I can’t help you. That’s between you & your beach house — and your kids, whose future you’re imperiling.' —Thomas Friedman, NY Times columnist.
Believe in global warming?  Great reply: Do you believe in gravity?

Bite"People often ask if I believe in global warming. I now just reply with the question: 'Do you believe in gravity.'" — Neil deGrasse Tyson, American astrophysicist and science communicator.
China’s pollution is no excuse for inaction

BiteSaying ‘we won’t do anything until China does’ is like saying ’We won’t protect free speech until China does.’ — Senator Barbara Boxer, California.
CO2 emissions not at fault?   That's rejecting 90 million tons of evidence

Bite'(Contrarians) seem “certain” the world’s scientists are wrong, and spewing 90 million tons per day of man-made (CO2) pollution into the atmosphere couldn’t possibly be the problem.' — Al Gore
No warming since 1998? Think all stopped cars are broken down?

Bite'No warming in 15 years' is like arguing your car is broken down because it hasn't moved in the 15 seconds while you stopped at a red light.' — Dana Nuccitelli, an environmental scientist at a private environmental consulting firm in the Sacramento, California area.
'I am not going fishing.  I want to get climate change right.'

Bite'Hey, Senator Inhofe, I am not going fishing. (Many) military people like me want to get climate change right.' — Ret. General Steve Anderson
No warming since 1998? It's like the tail wagging the dog

Bite'When you focus on just atmospheric heat to measure global warming, it's like tracking the tip of your dog’s tail to determine its location, instead of the body of the dog.' — Greg Laden, biological anthropologist and science communicator.
Earth was warm before? That's an observation, not an explanation

Bite'Yes, the climate changed before. That's called an observation, but a scientist’s role is to explain why it changed before and now. — Peter Hadfield, retired British journalist and creator of popular science YouTube channel Potholer54,
3 phases of great scientific ideas: denial, resistance, & acceptance

Bite“Every great scientific truth goes thru three phases: 1st people deny it, 2nd they say it conflicts with the Bible, 3rd they say they knew it all along.” — Neil deGrasse Tyson, American astrophysicist and science communicator.
'This is not uncertainty.  It's high school physics and chemistry'

Bite'Certain gases trap heat in our atmosphere...Anyone who tells you that's uncertain is either very confused or they're lying.' — Naomi Oreskes, Professor of Science History at the University of Califormia (San Diego)
Small Antarctic sea ice gain overlooks total sea ice loss

Bite‘Looking at sea ice and not total ice is like your high school football team winning their game, but your NFL team loses the Super Bowl.’ — Ted Scambos, Glaciologist at University of Colorado's National Snow and Ice Data Center.
Can’t trust politicians? Then British Monarchy should rule us again.

Bite‘If we can’t hold our politicians accountable, then we need to ask the British Monarchy come back because our experience in self governance failed.’ - Rep Bob Inglis responding to claim our elected leaders cannot be trusted to properly implement a carbon tax.
Balloons go up! So gravity is a hoax?

Bite"See this balloon? It goes up when I let it go. This proves gravity is a hoax." – This educational message brought to you buy The Jim Inhofe School of Science.
“I’m not a doctor, but I know not to drink arsenic”

Bite“I’m not a doctor, but I know not to drink arsenic.” – climate scientist Dr. Michael Mann responding to the “I am not a scientist” line used by top Republican leaders.
‘I’m not a scientist, but I can use my brains and talk to one’

Bite“I’m not a scientist either but I can use my brains and I can talk to one.” – former Florida Governor Charlie Crist in July 2014 responding to Florida Gov. Rick Scott's line, “I’m not a scientist.”
Scientists: The last people on Earth capable of a conspiracy

Bite“The last people on the planet capable of a conspiracy are scientists. Their entire career is spent trying to prove the other guy is wrong.” – Dr. Bruce Wielicki, senior Earth Scientist for NASA.
This is not a scientific debate. It’s a political debate

Bite‘If I have one message, it is that climate change is not a scientific debate. Its a political debate being made to look like a scientific debate.’ – Dr. Naomi Oreskes, Professor of the History of Science and Affiliated Professor of Earth and Planetary Sciences at Harvard University.
Earth was warmer before? Yes, go see Jurassic World!

Bite‘People often say: ‘Earth was warmer in the past with carbon dioxide levels higher than today’ Yes, there is a recent movie called Jurassic World. Would you like to go see it?’ – Dr. Katharine Hayhoe, climate scientist and associate professor of political science at Texas Tech University.
Climate scientists: not drama queens, more like anti-drama kings

Bite‘Scientists are often accused of being alarmists. However, an examination of scientific literature shows that scientists have been underestimating the risks. Instead of being drama queens, climate scientists are like anti-drama kings.‘ – Dr. Katharine Hayhoe, climate scientist and associate professo...
Reject climate change? Nobody wants to live on Wall-E’s planet

Bite‘Nobody hates Wall-E and nobody wants to live on his planet either.’ – Trace Dominguez, Contributor for Discovery News
Doubt climate change is real? Then look at hottest years on record

Bite“You know how you know when climate change is real? When the hottest year on record is whatever year it currently is.” – Comedian and late night TV host Jimmy Kimmel
Which number is bigger: a $30 carbon tax or $200 in health benefits?

Bite‘Ask your Congressperson: Which number is bigger: $30 a ton carbon tax or $200 in health benefits from avoided mortality and hospitalizations from every ton of CO2 that you remove.’ – Dr. Jonathan Patz, Director of the Global Health Institute.