For my generation, coming of age at the height of the Cold War, fear of nuclear winter seemed the leading existential threat on the horizon. But the danger posed by war to all humanity-and to our planet-is at least matched by climate change.
Given the nature and magnitude of the challenge, national action alone is insufficient. No nation can address this challenge on its own. No region can insulate itself from these climate changes. That is why we need to confront climate change within a global framework, one that guarantees the highest level of international cooperation.
There is no doubt in my mind that this is the greatest problem confronting mankind at this time and that it has reached the level of a state of emergency.
Please remain calm: The Earth will heal itself - Climate is beyond our power to control...Earth doesn't care about governments or their legislation. You can't find much actual global warming in present-day weather observations. Climate change is a matter of geologic time, something that the earth routinely does on its own without asking anyone's permission or explaining itself.
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.
What's at risk [in 100 years] if we do not take action, truly is the survival of civilization as we know it... Literally that is the case. We have seen global warming so far of just a little bit less than one degree Celsius and look at what's happened. Superstorm Sandy. Boulder Colorado. All these fires. Hurricane Irene one year before.
The debate's over. The people who dispute the international consensus on global warming are in the same category now with the people who think the moon landing was staged on a movie lot in Arizona.
We cannot afford to put off change any longer. We have to get on a new path within this new administration. We have only four years left for Obama to set an example to the rest of the world. America must take the lead.
I am a skeptic...Global warming has become a new religion.
I am afraid that I do not hold with the theory of 'global warming' - there will always be climate change....Big thing here is - do we know what we are doing that is bringing about climate change? At present the answer to this is NO.
It is one thing to impose drastic measures and harsh economic penalties when an environmental problem is clear-cut and severe....It is foolish to do so when the problem is largely hypothetical and not substantiated by observations....we do not currently have any convincing evidence or observations of significant climate change from other than natural causes.
The climate change debate is basically not about science; it is about ideology. It is not about global temperature; it is about the concept of human society. It is not about nature or scientific ecology; it is about environmentalism, about one - recently born - dirigistic and collectivistic ideology, which goes against freedom and free markets.
NASA should be at the forefront in the collection of scientific evidence and debunking the current hysteria over human-caused, or Anthropogenic Global Warming (AGW). Unfortunately, it is becoming just another agency caught up in the politics of global warming, or worse, politicized science.
This treaty [Kyoto] is, in our opinion, based upon flawed ideas. Research data on climate change do not show that human use of hydrocarbons is harmful. To the contrary, there is good evidence that increased atmospheric carbon dioxide is environmentally helpful...agreement would have very negative effects upon the technology of nations throughout the world, especially those that are currently attempting to lift from poverty and provide opportunities to the over 4 billion people in technologically underdeveloped countries.
Earth has cooled since 1998 in defiance of the predictions by the UN-IPCC....The global temperature for 2007 was the coldest in a decade and the coldest of the millennium...which is why 'global warming' is now called 'climate change.'
Global climate change needs global action now. The alarm bells ought to be ringing in every capital of the world.
Climate change is no longer a doomsday prophecy, it's a reality.
We really don't have a policy [on climate change]. There's a lot of rhetoric and not a lot of action.
I am not a scientist, but I don't need to be.
Protecting our future on this planet depends on the conscious evolution of our species.
Honored delegates, leaders of the world, I pretend for a living.
We only get one planet.
If we do not act together, we will surely perish.
And now it's your turn - the time to answer the greatest challenge of our existence on this planet is now.
My friends, this body - perhaps more than any other gathering in human history - now faces that difficult task.
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