French President Emmanuel Macron has pledged to step up environmental protection policies, including with a new reserve around Mont Blanc amid concerns over tourism and pollution.
Speaking at the foot of the country's highest mountain, he said 2020 would be a "decisive" year for the environment.
Critics have often spoken of the rising number of tourists coming to Mont Blanc and the pollution they leave behind.
Mr Macron also visited France's largest glacier that has shrunk dramatically.
