| Citation | Richard Alley has made outstanding contributions to the study of ice, its interactions with the landscape and its link to climate. He has made important advances in topics as diverse as grain-scale physics controlling ice deformation, the role and nature of ice streams, and processes at the bed of the ice sheet. His work synthesised the evidence that abrupt climate changes occurred in the past, and drove hypotheses about their cause and the role of ice on ocean circulation. Alley is also an outstanding science communicator, whose skill and enthusiasm has influenced both policymakers and large public audiences. |