what were his other contributions?
He invented the electron capture detector, proposed a method of climate engineering to restore carbon dioxide-consuming algae.
James Lovelock
He invented the electron capture detector, and using it, became the first to detect the widespread presence of CFCs in the atmosphere. While designing scientific instruments for NASA, he developed the Gaia hypothesis.

In the 2000s, he proposed a method of climate engineering to restore carbon dioxide-consuming algae. 
what history of evolutionary thought is about? It is about the recognition that species change over time and the perceived understanding of how such processes work, and its roots in antiquity what is its application to human? In 1871, Darwin published "The Descent of Man, and Selection in Relation to Sex", which contained his views on human evolution. did roman empire influence it? Lucretius' poem "De rerum natura" describes the development of the cosmos, the Earth, living things, and human society were there any other theories on this? Gaia hypothesis what does it state? The living and nonliving parts of Earth can be viewed as a complex interacting system with similarities to a single organism who proposed it? James Lovelock who is he? An English independent scientist, environmentalist, and futurist.
wiki:7703060
James Lovelock [SEP] Introduction
He has been an outspoken member of Environmentalists for Nuclear, asserting that fossil fuel interests have been behind opposition to nuclear energy, citing the effects of carbon dioxide as being more harmful to the environment, and warning of global warming due to the greenhouse effect. He has written several environmental science books based upon the Gaia hypothesis since the late 1970s.