There are caveats. The Paris agreement is legally binding in forcing governments to accept and cater for the 2C limit. But the commitments on curbing greenhouse gas emissions in line with that goal are not legally binding. This means incoming governments can renege upon them. There are no sanctions for governments that flout the goals.
The outcome of the US presidential election will be key. Donald Trump, the Republican candidate whose polling has improved markedly in recent days, has vowed to cancel the US’s participation in the Paris agreement. Russia has also failed to ratify the agreement, along with several other nations. China has ratified, but if US participation is not forthcoming under a future Trump government, that may be off.
So while the agreement should be hailed as a massive and historic step forward in international efforts to avoid dangerous levels of global warming, it is potentially fragile.
Meanwhile, the signs of danger are growing increasingly strong. This year is almost certain, according to Nasa, to be the warmest on record, following last year’s record-setting temperatures. This gives the lie to the claims of warming-dismissers that the upward march of global temperatures has “paused”.
Next year may not set records, but the trend is clear. We are on a trajectory that may lead to warming that is unprecedented and potentially irreversible. While there are other encouraging signs - the growth in renewable energy use around the world, the small reductions in emissions in some major economies - we should be in no doubt. The real work of Paris remains to be done.
Environment correspondent, The Guardian
Source: The Guardian