Which part of solar radiation (visible light vs. infrared radiation) plays main part in keeping Earth's surface warm?
Electromagnetic radiation converts based on frequency and exposure. Visible light and Infrared waves are the predominant energy sources that can penetrate the atmosphere. Higher energy wavelengths (UV and above) do interact but are often bounced by significant portions. Those radiations interact with atmospheric gases; emit infrared waves in the process.
I asked an AI your question, and got the following response. I then analyzed / researched / verified it in the following sections.
Short answer - Infrared radiation is what heats the Earth the most, followed closely by visible light, though all frequencies do somewhat heat the earth.
AI generated answer to the question "Which part of solar radiation (visible light vs. infrared radiation) plays main part in keeping Earth's surface warm?":
The AI correctly responded with high confidence "Infrared Radiation".
My own human analysis of the AI's response: This is produced by the Dragon AI in AI Dungeon, which is likely correct because infrared light has more of a heating effect than visible light. This is correct per the data I researched below as well:
Much of the energy from the Sun arrives on Earth in the form of infrared radiation. Sunlight in space at the top of Earth's atmosphere at a power of 1366 watts/m2 is composed (by total energy) of about 50% infrared light, 40% visible light, and 10% ultraviolet light. At ground level, this decreases to about 1120-1000 watts/m2, and consists of 44% visible light, 3% ultraviolet (with the Sun at the zenith (directly overhead), but less at other angles), and the remainder infrared. Thus, sunlight's composition at ground level, per square meter, with the sun at the zenith, is about 527 watts of infrared radiation, 445 watts of visible light, and 32 watts of ultraviolet radiation. The balance between absorbed and emitted infrared radiation has a critical effect on the Earth's climate.
If anyone can come up with another reference to strengthen this (or if anything contradicts this), please comment. I was not able to find anything beyond this link online.