元宵燈謎猜謎語
Mr. President, Mr. Secretary General, fellow leaders: For all the immediate challenges that we gather to address this week – terrorism, instability, inequality, disease – there’s one issue that will define the contours of this century more dramatically than any other, and that is the urgent and growing threat of a changing climate.

Five years have passed since many of us met in Copenhagen. And since then, ourunderstanding of climate change has advanced – both in the deepening science that says thisonce-distant threat has moved “firmly into the present,” and into the sting of more frequentextreme weather events that show us exactly what these changes may mean for futuregenerations.
No nation is immune. In America, the past decade has been our hottest on record. Along oureastern coast, the city of Miami now floods at high tide. In our west, wildfire season nowstretches most of the year. In our heartland, farms have been parched by the worst drought ingenerations, and drenched by the wettest spring in our history. A hurricane left parts of thisgreat city dark and underwater. And some nations already live with far worse. Worldwide, thissummer was the hottest ever recorded -- with global carbon emissions still on the rise.
So the climate is changing faster than our efforts to address it. The alarm bells keep ringing.Our citizens keep marching. We cannot pretend we do not hear them. We have to answer thecall. We know what we have to do to avoid irreparable harm. We have to cut carbonpollution in our own countries to prevent the worst effects of climate change. We have toadapt to the impacts that, unfortunately, we can no longer avoid. And we have to worktogether as a global community to tackle this global threat before it is too late.
We cannot condemn our children, and their children, to a future that is beyond their capacityto repair. Not when we have the means -- the technological innovation and the scientificimagination -- to begin the work of repairing it right now.
As one of America’s governors has said, “We are the first generation to feel the impact ofclimate change and the last generation that can do something about it.” So today, I’m herepersonally, as the leader of the world’s largest economy and its second largest emitter, to saythat we have begun to do something about it.
The United States has made ambitious investments in clean energy, and ambitiousreductions in our carbon emissions. We now harness three times as much electricity from thewind and 10 times as much from the sun as we did when I came into office. Within a decade,our cars will go twice as far on a gallon of gas, and already, every major automaker offerselectric vehicles. We’ve made unprecedented investments to cut energy waste in our homesand our buildings and our appliances, all of which will save consumers billions of dollars. And weare committed to helping communities build climate-resilient infrastructure.
So, all told, these advances have helped create jobs, grow our economy, and drive our carbonpollution to its lowest levels in nearly two decades – proving that there does not have to be aconflict between a sound environment and strong economic growth.
Over the past eight years, the United States has reduced our total carbon pollution by morethan any other nation on Earth. But we have to do more. Last year, I issued America’s firstClimate Action Plan to double down on our efforts. Under that plan, my administration isworking with states and utilities to set first-ever standards to cut the amount of carbonpollution our power plants can dump into the air. And when completed, this will mark thesingle most important and significant step the United States has ever taken to reduce ourcarbon emissions.
Last week alone, we announced an array of new actions in renewable energy and energyefficiency that will save consumers more than $10 billion on their energy bills and cut carbonpollution by nearly 300 million metric tons through 2030. That's the equivalent of takingmore than 60 million cars off the road for one year.
I also convened a group of private sector leaders who’ve agreed to do their part to slashconsumption of dangerous greenhouse gases known as HFCs – slash them 80 percent by2050.
And already, more than 100 nations have agreed to launch talks to phase down HFCs under theMontreal Protocol – the same agreement the world used successfully to phase out ozone-depleting chemicals.
This is something that President Xi of China and I have worked on together. Just a few minutesago, I met with Chinese Vice Premier Zhang Gaoli, and reiterated my belief that as the twolargest economies and emitters in the world, we have a special responsibility to lead. That’swhat big nations have to do. (Applause.)
And today, I call on all countries to join us – not next year, or the year after, but right now,because no nation can meet this global threat alone. The United States has also engagedmore allies and partners to cut carbon pollution and prepare for the impacts we cannot avoid.All told, American climate assistance now reaches more than 120 nations around the world.We’re helping more nations skip past the dirty phase of development, using currenttechnologies, not duplicating the same mistakes and environmental degradation that took placepreviously.
We’re partnering with African entrepreneurs to launch clean energy projects. We’re helpingfarmers practice climate-smart agriculture and plant more durable crops. We’re buildinginternational coalitions to drive action, from reducing methane emissions from pipelines tolaunching a free trade agreement for environmental goods. And we have been workingshoulder-to-shoulder with many of you to make the Green Climate Fund a reality.
But let me be honest. None of this is without controversy. In each of our countries, there areinterests that will be resistant to action. And in each country, there is a suspicion that if weact and other countries don't that we will be at an economic disadvantage. But we have tolead. That is what the United Nations and this General Assembly is about.
Now, the truth is, is that no matter what we do, some populations will still be at risk. Thenations that contribute the least to climate change often stand to lose the most. And that’swhy, since I took office, the United States has expanded our direct adaptation assistanceeightfold, and we’re going to do more.
Today, I’m directing our federal agencies to begin factoring climate resilience into ourinternational development programs and investments. And I’m announcing a new effort todeploy the unique scientific and technological capabilities of the United States, from climatedata to early-warning systems. So this effort includes a new partnership that will draw on theresources and expertise of our leading private sector companies and philanthropies to helpvulnerable nations better prepare for weather-related disasters, and better plan for long-termthreats like steadily rising seas.
Yes, this is hard. But there should be no question that the United States of America is steppingup to the plate. We recognize our role in creating this problem; we embrace our responsibilityto combat it. We will do our part, and we will help developing nations do theirs. But we canonly succeed in combating climate change if we are joined in this effort by every nation –-developed and developing alike. Nobody gets a pass.
The emerging economies that have experienced some of the most dynamic growth in recentyears have also emitted rising levels of carbon pollution. It is those emerging economies thatare likely to produce more and more carbon emissions in the years to come. So nobody canstand on the sidelines on this issues. We have to set aside the old divides. We have to raise ourcollective ambition, each of us doing what we can to confront this global challenge.
This time, we need an agreement that reflects economic realities in the next decade andbeyond. It must be ambitious – because that’s what the scale of this challenge demands. Itmust be inclusive – because every country must play its part. And, yes, it must be flexible –because different nations have different circumstances.
Five years ago, I pledged America would reduce our carbon emissions in the range of 17percent below 2005 levels by the year 2020. America will meet that target. And by early nextyear, we will put forward our next emission target, reflecting our confidence in the ability ofour technological entrepreneurs and scientific innovators to lead the way.
So today, I call on all major economies to do the same. For I believe, in the words of Dr. King,that there is such a thing as being too late. And for the sake of future generations, ourgeneration must move toward a global compact to confront a changing climate while we stillcan.
This challenge demands our ambition. Our children deserve such ambition. And if we actnow, if we can look beyond the swarm of current events and some of the economic challengesand political challenges involved, if we place the air that our children will breathe and the foodthat they will eat and the hopes and dreams of all posterity above our own short-term interests,we may not be too late for them.
While you and I may not live to see all the fruits of our labor, we can act to see that the centuryahead is marked not by conflict, but by cooperation; not by human suffering, but by humanprogress; and that the world we leave to our children, and our children’s children, will becleaner and healthier, and more prosperous and secure.
Thank you very much. Thank you.
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