Weather Blog Roiling Poás Volcano The restless Costa Rican volcano sustains a hot, ultra-acidic crater lake that shares similarities to Martian environments. Read More… About Author OTW Observer See author's posts Continue Reading Previous: BBC Weather forecasts when it will get properly hot again in JuneNext: London weather to see temperatures soar to 26C this week after rain dump Related Stories Arctic Sea Ice Ties for 10th-Lowest on Record Weather Blog Arctic Sea Ice Ties for 10th-Lowest on Record September 19, 2025 Cooper Creek Replenishes Lake Eyre Weather Blog Cooper Creek Replenishes Lake Eyre September 17, 2025 Australia’s Howick River Weather Blog Australia’s Howick River September 17, 2025