What planet is the one that features the runaway greenhouse affect?

Venus is the planet that features a runaway greenhouse effect. This phenomenon has caused its surface temperatures to soar to around 900 degrees Fahrenheit (475 degrees Celsius), making it the hottest planet in the solar system. The thick atmosphere, composed mainly of carbon dioxide, traps heat and prevents it from escaping, leading to extreme conditions. This process serves as a cautionary example of how greenhouse gases can drastically alter a planet's climate.