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Final draft of climate deal formally accepted in Paris

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PARIS — After years of buildup and weeks of negotiations, world leaders accepted the final draft of an ambitious, global climate change agreement Saturday in Paris.

Though hailed as a milestone in the battle to keep Earth hospitable to human life, the plan is short on specifics. It doesn’t say how much each country must reduce greenhouse gas emissions or how nations will be punished if they violate the agreement.

The accord sets a goal of limiting average warming to 2 degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial temperatures — and of striving for a limit of 1.5 degrees Celsius (2.7 degrees Fahrenheit) if possible.

“We have set a course here,” U.S. Secretary of State John Kerry said. “The world has come together around an agreement that will empower us to chart a new path for our planet. A smart and responsible path. A sustainable path.”

Obama: Climate change deal the ‘best chance’ to save planet

Some major points not addressed

The agreement doesn’t mandate exactly how much each country must reduce its greenhouse gas emissions.

Rather, it sets up a bottom-up system in which each country sets its own goal — which the agreement calls a “nationally determined contribution” — and then must explain how it plans to reach that objective.

Those pledges must be increased over time, and starting in 2018 each country will have to submit new plans every five years.

Many countries actually submitted their new plans before climate change conference, known as COP21, started last month — but those pledges aren’t enough to keep warming below the 2-degree target. But the participants’ hope is that over time, countries will aim for more ambitious goals and ratchet up their commitments.

Another sticking point has been coming up with a way to punish nations that don’t do their part, but observers say that was never really on the table.

Instead, the agreement calls for the creation of a committee of experts to “facilitate implementation” and “promote compliance” with the agreement, but it won’t have the power to punish violators.

‘This didn’t save the planet’

Another issue, according to observers, was whether there would be compensation is paid to countries that will see irreparable damage from climate change but have done almost nothing to cause it.

The agreement calls for developed countries to raise at least $100 billion annually in order to assist developing countries. Members of the scientific and environmental activist communities responded with varying degrees of optimism.

“This didn’t save the planet,” Bill McKibben, the co-founder of 350.org, said of the agreement. “But it may have saved the chance of saving the planet.”

Jennifer Morgan of the World Resources Institute anticipated a “historic agreement that marks a turning point in the climate crisis.”

What happens next?

Even though the text has been agreed upon, there’s still much more that needs to be done before the agreement goes into effect.

The agreement was adopted by “consensus” during the meeting of government ministers. That doesn’t necessarily mean all 196 parties approved it; French Foreign Minister Laurent Fabius, who served as the president of the conference, had the authority to decide if a consensus had been reached.

Individual countries now must individually ratify or approve the agreement in their respective countries.

And the agreement won’t enter into force until 55 countries have ratified it. Those nations must account for 55% of total global greenhouse gas emissions.

That means if the world’s biggest polluters don’t authorize the agreement, enacting it could prove challenging.

China and the United States, respectively, account for about 24% and 14% of total greenhouse gas emissions, according to the World Resources Institute.

The United States has backed off climate change votes in the past.

The Kyoto Protocol on reducing greenhouse gas emissions was adopted in 1997. The Clinton administration signed the agreement but, fearing defeat, never submitted it to the Senate for ratification.

In China, the Standing Committee of the National People’s Congress is in charge of approving treaties.

The agreement calls for a signature ceremony in April 2016, and requests that the U.N. Secretary-General keep the agreement open for signing until April 2017.

Fabius released the draft worked out by negotiators Saturday morning. Later in the day, world leaders or their representatives approved it. A crowd erupted in applause once the agreement’s adoption was announced.

‘We need all hands on deck’

World leaders praised passage of the agreement.

“A month ago tomorrow, Paris was the victim of the deadliest terror attack in Europe for more than a decade,” British Prime Minister David Cameron wrote in a Facebook post. “Today, it has played host to one of the most positive global steps in history.”

U.N. chief Ban Ki-moon hailed the draft that was put together at the 21st Conference of Parties, or COP21.

“We must protect the planet that sustains us,” Ban said. “For that we need all hands on deck.”

In the streets of Paris, outside the conference, protesters demanded action. #ParisAgreement was trending on Twitter.

“Nous sommes la nature qui se défend!” read one tweet, with a photo of one person dressed as a polar bear and another dressed as a penguin. “We are nature that defends itself.”

Some demonstrators felt differently — they called the agreement insufficient and chanted “it’s a crime against humanity.”

“We have a 1.5-degree wall to climb, but the ladder isn’t tall enough,” Kumi Naidoo of Greenpeace said at a press conference. He did call the agreement a “new imperative” and positive step.

2 degrees Celsius threshold

Capping the increase in global average temperatures to 2 degrees Celsius was organizers’ key goal going into the COP21. That level of warming is measured as the average temperature increase since the Industrial Revolution.

Failure to set a cap could result in superdroughts, deadlier heat waves, mass extinctions of plants and animals, megafloods and rising seas that could wipe some island countries off the map.

Scientists and policy experts say hitting the 2 degrees Celsius threshold would require the world to move off fossil fuels between about 2050 and the end of the century.

To reach the more ambitious 1.5 degrees Celsius goal, some researchers say the world will need to reach zero net carbon emissions sometime between about 2030 and 2050.

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