Mengmeng Liu was a PDRA at the University of Reading where she focused on Earth system feedbacks. Many feedbacks in the Earth systems are positive (not equal to “good”, just like covid), making warming warmer and cooling cooler, in other words, making things worse, thus very important when predicting future climate change. She had successfully quantified the greenhouse-gas climate feedbacks, as well as the albedo feedbacks from vegetation effect, snow effect and their combined effect during her PhD study at Imperial College London. She continued with fire feedbacks and dust feedbacks here as a postdoc.