Climate not only influences our lives but also molds Earth's diverse ecosystems, such as lakes.   But even though the links between the climate and lakes are widespread, they can sometimes surprise us. That's why we need science--because it's the best tool we have to unravel nature's surprises and learn about our world. So, to know what aquatic ecosystems will look like in the warmer world of tomorrow, I study how they are shaped by climate today.