China ratifies Paris climate agreement

China's top legislature has ratified the Paris global climate agreement, state news agency Xinhua reports.

The country is the world's largest emitter of harmful CO2 emissions, which cause climate change.
China and the US are expected to jointly announce ratification at a bilateral summit later on Saturday.
In a landmark deal struck in December, countries agreed to cut emissions enough to keep the global average rise in temperatures below 2C.
What is climate change?
What does the climate deal mean for me?
Members of China's National People's Congress Standing Committee adopted "the proposal to review and ratify the Paris Agreement" on Saturday morning at the end of a week-long session.
The Paris deal is the world's first comprehensive climate agreement. It will only come into force legally after it is ratified by at least 55 countries, which between them produce 55% of global carbon emissions.

---

Analysis: BBC environmental analyst Roger Harrabin

This is a big step towards turning the Paris climate agreement into reality.
Other nations will still tussle over their own ratification, but this will put pressure on G20 nations over the weekend to move faster with their pledge to phase out subsidies to fossil fuels.
But even if enough other players step forward to make the Paris deal law, huge challenges lie ahead.
Read more by Roger

---

When the US - the world's second-largest emitter - follows China's lead, it will bump the tally up to 40%.
Before China made this announcement, the 23 nations that had ratified the agreement accounted for just over 1% of emissions.

Image copyright AFP

Image caption The Paris deal struck last December was seen as a major break