Demonstrations calling for urgent action on climate change have taken place in cities around the world
In Glasgow, organisers claim up to 100,000 people have braved rain and wind to march through the city, which is hosting COP26
Vanessa Nakate is among activists who have given speeches at Glasgow Green
Inside the summit, 45 nations have pledged £3bn to help protect nature and shift to better ways of farming - but critics say more cash is needed
The UK has pledged £500m to protect five million hectares of tropical rainforests and create of green jobs across Africa, Asia and Latin America
The climate summit runs for another week - its key goal is for action to be agreed that will help us avoid the worst impacts of global warming
That wraps up the first week of COP26.
There's a "rest day" for all those taking part in the Glasgow conference tomorrow, before talks on how to avoid the worst impacts of global warming resume on Monday.
We'll be back with our live coverage then.
Today's updates were brought to you by Jen Meierhans, Mary O'Connor, Paul McLaren, Hamish Mackay and Claudia Allen in Glasgow and London.
Tens of thousands of people took part in a march in Glasgow
As we have been reporting, it has been an eventful day as the call for climate action was taken around the UK and the world.
Hundreds of marches were staged to mark the so-called Global Day Of Action For Climate Justice.
Organisers say more than 100,000 people took to the streets of Glasgow in the largest protest of COP26 so far.
There were also demonstrations in London, Cardiff, Belfast and other UK cities.
Meanwhile, today's theme at the COP26 summit has been nature.
Around the negotiating tables, 45 nations pledged £3bn to help protect nature and shift to better ways of farming.
The UK is also chipping in £6m ($8m) to a UN fund to help developing nations protect their seas.
Matt McGrath
Environment correspondent in Glasgow
At this crazily energetic COP, tens of thousands of people and their differing world views have come crashing into each other. Here, the apostles of the green new age have come to vanquish once and for all, the oily disciples of the old world.
Climate change, once a far away problem for the poor, is now often seen in desperate escapes from fire or flood, filmed on a jerky mobile phone.
This year it came closer and closer to people - one day soon it could be your phone doing the filming.
Here in Glasgow, that sense of urgency permeates every conversation.
As host, the UK has undoubtedly made a powerful start, but there is a rising sense of anger and frustration about announcements designed to steal headlines. Many developing country delegates feel isolated with their key priorities ignored.
The challenge now for the UK is to steer the ship through the really difficult waters of the week ahead, where the long-running sore that is the divide between rich and poor will once again play out.
As well as money and technicalities, the UK will have to address very basic issues of fairness, justice and trust.
Ultimately, for the summit to get a strong agreement that will temper rising temperatures, there is one key question: are we really all in this together?
As we come to the end of the first week of COP26, here's a look at some photographs from the biggest climate change protest to take place in Glasgow so far.
Image source, Getty ImagesMembers of indigenous groups, some of whom had no formal representation at the summit, joined the march
Image source, Getty ImagesMarchers display colourful placards with their calls on governments - though the cardboard was quite damp by the end of the day
Image source, Andrew MilliganSome activists sought to draw attention to the impact of climate change on wildlife
You can see more pictures here.
COP 26: What Alaska’s shrinking island means for all of us
A short while ago the protest rally at Glasgow Green heard speeches from representatives of indigenous people around the world about how climate change is impacting them.
Residents of Shishmaref, in northern Alaska, may be relocated due to rising temperatures, thawing permafrost, and rapid coastal erosion, BBC climate editor Justin Rowlatt reports.
Denis, who has lived on Shishmaref for 20 years, worries about residents' access to urgent medical care, food, mail and transport on and off the island if its airport runway is overcome by the sea.
He reckons that Shishmaref - which has a population of less than 600 - will be "covered" within the next five to 10 years due to the effects of climate change, adding: "Just that one or two degrees makes a big difference."
Denis warns that what is happening in his community will ultimately happen in other US coastal areas if action is not taken.
Laura Foster
BBC correspondent in Glasgow
In 2019, the music group Massive Attack teamed up with scientists at the Tyndall Centre for climate change research to try to work out a way to decarbonise the live music industry.
This summer they published their guide so that live music and gigs could still continue in a net-zero world.
Vegan food, carefully planned tour routes involving travel by train, better bike facilities at venues and ditching private jets were just some of the many switches recommended.
Here at COP26, Rob de Naja is talking to Professor Carly McLachlan From the Tyndall centre and Dale Vince from Ecotricity.
Every seat is full but no doubt this blue zone would be far busier if it weren’t for the climate March happening in central Glasgow this afternoon.
Read more here on Massive Attack's efforts to help the music industry reduce its carbon footprint.
This week, we've heard speeches from politicians and activists - and now Idris Elba has joined their ranks.
The actor says people may wonder why he's there but that he wants to use his "big mouth" to amplify the conversation around food security.
You can watch a clip of him - speaking alongside Ugandan activist Vanessa Nakate - below.
COP26: Idris Elba joins activist Vanessa Nakate in call for food security
Image source, Getty ImagesGreta Thunberg joined the Glasgow march but did not speak on stage
Organisers have confirmed Greta Thunberg will not be speaking at Glasgow Green.
The Swedish activist was marching today and it was hoped she would take to the stage, as she did yesterday.
The last speech is about to wrap up and security are preparing to disperse the crowds.
Mary McCool
BBC Scotland News
Speeches and live music are well under way at Glasgow Green - with thousands of activists still surging through the entrance archway.
Over frequent cries of "climate justice", you can hear the music that activists have brought from all over the world - be it the call and response of samba drums or Aretha Franklin blaring from a portable speaker.
Earlier, a stage had to be dismantled due to strong winds.
But guest speakers have instead delivered their messages from a makeshift platform inside a lorry.
It's cramped and people are cold - but they are determined to have their voices heard.
Climate activist Vanessa Nakate makes her appearance on the Glasgow stage.
Two years ago, inspired by Greta Thunberg's Friday school protests, Nakate started her own strike outside the Ugandan parliament demanding government action on climate change.
She tells the Glasgow crowd how overnight storms have seriously damaged a school which she and fellow campaigners helped to build in her home country.
"The strong winds and heavy rainfall will not stop, because the words and promises of leaders do not match their actions.
"And this is just one example. I need someone to tell me how to explain to farmers who are losing their crops and farms because of droughts and floods, while leaders continue to open up new coal power stations.”
An update from inside the summit
Roger Harrabin
BBC environment analyst
Image source, ReutersReef fish swim above recovering coral colonies on the Great Barrier Reef off the coast of Cairns, Australia.
Some 45 governments have vowed to protect nature and shift to better ways of farming.
Many forests and grasslands, which previously soaked up our carbon emissions, are actually giving out carbon as soils are damaged and trees are felled.
The expansion of cattle ranching is a big problem.
Governments are now channelling £3bn ($4bn) to help farmers protect nature, emit less CO2 and methane from livestock, and cope with a heating climate.
The UK is promoting the initiative but the Wildlife Trusts say it also must urgently reform subsidies for British farming.
The oceans are vital too, absorbing about a third of our carbon emissions.
But over-fishing, pollution and global heating are harming the seas, and the acidification of sea water caused by CO2 is deadly to coral reefs.
The UK is chipping in £6m ($8m) to a UN fund to help developing nations protect their seas.
Critics say the cash and related policies are welcome but not nearly enough.
Away from Glasgow now, here's a quick look at protests taking place elsewhere in Europe.
Image source, EPAIn France, climate action activists display portraits of world leaders, including US President Joe Biden, Indian Prime Minister Narendra Modi, Russian President Vladimir Putin, German Chancellor Angela Merkel and the French President Emmanuel Macron in front of the Paris city hall
Image source, ReutersProtesters march with striking placards in Istanbul, Turkey. The country's president, Recep Erdogan, was due to attend COP26, but cancelled the trip for what his office said were security reasons
Image source, EPAExtinction Rebellion activists block Rue de la Loi during a protest in Brussels, Belgium
Image source, EPAIn Amsterdam, the Netherlands, one activist spoofs a Shell oil executive as they turn the crank to heat up the planet
One of the hosts of the Glasgow event is Mitzi Jonelle Tan, from the youth activists' group Fridays for Future and MAPA.
She tells the crowd that it is "very important that we listen to the people of colour, the black people who have barely contributed to the climate crisis yet are experiencing the worst impacts of it".
"We have to tackle every system of injustice in order to achieve climate justice," she adds.
Image source, bbcGregorio Diaz Mirabal calls for support for indigenous people
The opening speeches in at the protest rally at Glasgow Green are coming from representatives of indigenous people around the globe.
Gregorio Diaz Mirabal, the leader of the Congress of Indigenous Organizations of the Amazon Basin, tells the crowds he gives them "a hug the size of the planet".
To large cheers, he adds: "We just want to ask you, from our hearts, for your support and solidarity to build governance of indigenous peoples around the world."
More on trees now, as today's theme at the summit in Glasgow is nature - and its role as a solution for tackling climate change.
Trees have an important role in removing carbon emissions from the atmosphere, and the UK government has an ambitious target to plant 30,000 hectares of trees a year by 2025.
A hectare is a bit bigger than a football pitch.
Annual tree planting was close to this figure back in the late 1980s (most of it in Scotland) but it has not risen above 15,000 hectares UK-wide since 2001.
Tree-planting is a devolved issue, and Scotland has nearly twice as much coverage as England.
The government wants to treble planting in England during this Parliament, but overall it has a lot of ground to make up by 2025.
A sharp acceleration will be needed to meet this target, and there are questions about how the trees will be cared for after they are planted.
Steve Mellen
BBC News reporter in Bristol
Much of today's focus is on Glasgow but there have been demonstrations taking place all around the UK.
Here in Bristol there are an estimated 5,000 people on the climate march, which began at College Green and is currently on a loop through the city centre.
At the start of the march, the Baltic Wharf Brides paraded in front of the crowd.
They are all women who “married” threatened trees on Bristol Harbourside in September.
Image source, ReutersVanessa Nakate speaks at a 'Fridays for Future' march during COP26
Climate activist Vanessa Nakate - who has been speaking on a COP26 panel about sustainable food production alongside the actor Idris Elba this afternoon - will be addressing the crowds at Glasgow Green soon.
But who is the 24-year-old and what does she stand for?
Nakate's home country of Uganda is a landlocked nation in east Africa, with the Equator Line running through it, making it one of the hottest places on Earth.
This heat brings extreme weather conditions that can lead to drought or heavy rainfall.
She says she has witnessed the consequences throughout her life, as farming became harder and heavy rain devastated communities, and decided she needed to take action.
Two years ago, inspired by Greta Thunberg's Friday school protests, Nakate started her own strike outside the Ugandan parliament demanding government action on climate change.
She later spoke at COP25 and the World Economic Forum in Davos, Switzerland, where she called on companies, banks and governments to immediately stop putting money into the use of fossil fuels for energy.
You can read more about Vanessa here.
Paul O'Hare
BBC Scotland News
Ruby Hembrom, left, and Sophie Grig
Today, we've been speaking to people marching through Glasgow about why they felt it was important to attend.
Ruby Hembrom is on the march to raise awareness of the plight of people in her native India.
She says: “When you look at climate change, the most vulnerable people will be the most impacted.
“Indigenous people are forced from the forests due to coal and mining projects. The consequences are devastating.”
The London-based student has been joined by Sophie Grig, senior campaigner with Survival International.
The group works to support native groups across the world, especially those who face persecution and displacement.
Sophie says: “We have to stop burning and extracting fossil fuels. And we have to end the suffering of indigenous communities.”
Back in Glasgow, the main march of the day has now reached Glasgow Green - with organisers estimating that 100,000 people are taking part. The police are not giving an estimate of crowd numbers.
As we have been reporting, Greta Thunberg will speak at the rally, with other speakers including Samoan climate activist Brianna Fruean, 23, who addressed world leaders at the opening of the COP26 talks.
She will be joined by others such as Mitzi Jonelle Tan, who has previously told the BBC of her trauma at the typhoons engulfing her home in the Philippines.
Tom Grundy
BBC News in Trafalgar Square
London’s climate march has reached its final destination in Trafalgar Square.
A large crowd has filled the square to hear various speeches delivered underneath Nelson’s Column.
The speakers so far have called for “climate justice”. The march started outside the Bank of England, with protestors claiming London’s financial district is “the engine room of the climate crisis”.
