The tiny Pacific island territory of Tokelau had the best turnout for the global climate strikes as a percentage of its population, according to one of the event organisers.
For the past two weeks, student-led strikes have been held .
On Sunday, international co-organisers 350.org took to social media to claim 310 people participated in the Tokelau strike, which translated to roughly 20 per cent of the population.
Tokelau, a dependent territory of New Zealand, is considered one of the world's most vulnerable nations to the impact of climate change. The three low-lying coral atolls all sit only metres above sea level.
Second place by percentage of population was New Zealand, where local organisers said around 170,000 people took part or 3.5 per cent of the population.
Canada came in third place, with 350.org's own estimate of "800,000+ people" taking part, which is 2.1 per cent of the country.
The environmental advocacy group claimed 500,000 activists turned out in Montreal, which it believes was the largest single climate action to ever take place.
Austria and Germany tied in fourth place with around 1.7 per cent of the population joining strikes across the two countries.
In Australia, School Strike 4 Climate said 350,000 students and workers took to the streets. That amounts to 1.4 per cent of the country, making it 7th in the world.
In total, 350.org claimed more than seven million people took part in 6,100 protest events across 185 countries.
The actions were the "biggest climate protest and one of the biggest global protests in history", it proclaimed.
And while organisers trumpeted the bigger events, several small but meaningful protests also took place.
In Russia, there were a number of one-person protests, with participants taking aim at Russian laws which limit demonstrations.