Scientists are looking for chemicals in the seabed to help predict climate change because the ocean floor contains valuable information to understand ancient climates and past environmental changes. Chemicals found in the seabed, such as isotopes and organic matter, can provide evidence of past climate conditions, including temperature and precipitation levels, as well as changes in the ocean's chemistry and circulation. By analyzing these chemicals, researchers can reconstruct climate history and gain insights into how the climate may change in the future.