Europe is launching a major diplomatic push for an ambitious deal on global warming, mobilising A-list celebrities and tens of thousands of diplomats to exert “maximum pressure” on key countries in international climate negotiations.

A group of eight WPP agencies have banded together to launch a multimedia campaign for Al Gore and the Climate Reality Project in an effort to prompt global leaders to reduce carbon emissions in the days leading up to the U.N. Climate Summit on September 23.

FC Barcelona defender Dani Alves sparked a global anti-racism protest by eating a banana that was thrown at him during Sunday's match at Villareal. Alves picked it up, peeled it, and then ate it before taking a corner kick. Barcelona forward Neymar later kicked off the global trend, tweeting an Instagram image of the incident using #SomosTodosMacacos ("We are all monkeys"). The hashtag has since been shared more than 64,000 times.

Colombians have a message for the world: Stop misspelling our country's name. Seriously, it's not that hard. It's Colombia, NOT Columbia. The simple reminder has grown into a global campaign. Sure, it's just one pesky vowel, but, in this case, the difference between an "o" and a "u" is the difference between respect and disrespect.

For the past decade the Molotov song “Gimme the Power” has served as an anthem of youth rebellion decrying corrupt police and politicians in Mexico. This week, its lyrics became the banner under which thousands of young people protested online and in the streets against Mexico’s new telecommunications law, which they believe infringes on their civil rights.

Ukrainians on Twitter are deriding claims that a far-right leader's business card was found at the site of an attack on a checkpoint manned by pro-Russian activists. Sunday's gun battle, which occurred near the eastern Ukrainian city of Slovyansk, left three dead and a fragile truce on the brink of collapse.

Under the slogan "Sidikewe! Vukani! Vote no!" (We've had enough! Wake up! Vote no!), more than one hundred veterans of South Africa's ruling party are calling for citizens to protest at the ballot box. Former government ministers are leading the campaign, accusing President Jacob Zuma and ANC leaders of corruption and complacency.