What would happen if the sun energy increases?

If the sun's energy output were to increase significantly, it would lead to a rise in global temperatures, causing drastic climate changes. Increased solar radiation could result in more extreme weather events, melting polar ice caps, and rising sea levels. Ecosystems would be disrupted, threatening biodiversity, while human infrastructures could face severe challenges from heat stress and changing weather patterns. Overall, such a scenario would pose serious risks to agriculture, water supply, and public health.