Picture the tropical forest - hot, humid and full of obstacles. The dense plant life, uneven terrain and wild animals make it extremely difficult for researchers to monitor temperatures near the forest floor, crucial data for understanding the impact of climate change. Yet CUHK scientists have braved this inhospitable realm, overcoming immense challenges to discover cooler microclimates close to the ground, and offering vital clues about how these precious ecosystems are responding to our warming world.