1986 LAKE NYOS
A 1960s house in South London is staying 10C cooler than outside without air conditioning during extreme heat. It acts like an insulated flask maintaining a cooler temperature indoors by keeping heat outside
In 1961, Berliners went to sleep and woke up to a city cut in half. East German troops had put up barbed wire overnight, stopping trains, cars and thousands of people from crossing between East and West Berlin
In 1986, a mysterious gas cloud escaped from Lake Nyos in Cameroon, silently killing people as they slept. An invisible cloud travelled 25 km, wiping out entire villages and killing more than 1,700 people overnight
Limnic Eruptions: Why Some Lakes Explode Without WarningRare 'limnic eruptions' can unleash deadly, invisible gas clouds from deep lakes, as seen in Cameroon's 1986 Lake Nyos disaster. These even...23 Feb, 2026, 03.56 PM IST
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