The Industrial-Medical Revolution Dramatic Increase in Environmental Impact • Factory towns grew polluted, noisy and very hazardous. (air pollution, water pollution, toxics) • Coal smoke filled cities. • Fossil fuels powered larger farm machines for larger farms. The Industrial-Medical Revolution Dramatic Increase in Environmental Impact • Factory towns grew polluted, noisy and very hazardous. (air pollution, water pollution, toxics) • Coal smoke filled cities. • Fossil fuels powered larger farm machines for larger farms. The Industrial-Medical Revolution Cultural Changes & the Environment: The Information/Globalization Revolution Information Revolution Since the 1950s we have moved towards technologies to share information rapidly on a global scale. Global access to information can help us understand and respond to environmental problems, but can lead to information overload. The Information/Globalization Revolution Review • What major human cultural changes have taken place and how have they impacted the environment? • Describe hunter-gather, agricultural, industrial, and globalization societies. List several trade offs of each. • When did humans begin to shift away from renewable resources? • Describe slash and burn techniques. • How did the impact on the US environment shift from tribal to frontier times. Describe both eras. The Early Conservation Era (1832-1960) Between 1870 and 1930, the role of the federal government and private citizens increased to protect natural resources The Forest Reserve Act of 1891 established that federal government was responsible for protecting public lands from exploitation. John Muir was a geologist and naturalist who founded the Sierra Club in 1892. He lobbied for conservation laws, he led the preservationist movement to limit use of public wilderness to hiking and camping, he lobbied for a National Park system, and he was responsible for establishing Yosemite National Park in 1890