Margaret Thatcher senior member of the party and former Minister of Defence, as Foreign Minister in 1979. Although he was considered a "wet", he avoided domestic affairs and got along well with Thatcher. The first issue was what to do with Rhodesia, where the five-percent white population was determined to rule the prosperous, largely-black ex-colony in the face of overwhelming international disapproval. After the collapse of the Portuguese Empire in Africa in 1975, South Africa, which had been Rhodesia's chief supporter, realised that country was a liability. Black rule was inevitable, and Carrington brokered a peaceful solution at the Lancaster House conference
Margaret Thatcher of the Hadley Centre for Climate Research and Prediction, the establishment of the Intergovernmental Panel on Climate Change, and the ratification of the Montreal Protocol on preserving the ozone. Thatcher helped to put climate change, acid rain and general pollution in the British mainstream in the late 1980s, calling for a global treaty on climate change in 1989. Her speeches included one to the Royal Society in 1988, followed by another to the UN General Assembly in 1989. However, after retiring as Prime Minister, she became sceptical about climate change policy and rejected climate alarmism. Thatcher appointed Lord Carrington, a