Nancy Trautmann, Keith Porter, Robert Wagenet - Cornell University. Agriculture has been a major component of the United States economy since colonial days, when 9 out of 10 working persons were employed on a farm. Produclivity of American agriculture has tripled since then, and today only 3 percent of our labor force produces enough food and fiber to meet domestic needs as well as supplying about 10 percent of total overseas consumption. This increase has been the result of including use of fertilizer, and pesticides, introduction of farm machinery, development of hybrid strains, and increased knowledge about farm management practices.
To say that the Earth is a human planet becomes truer every day. Humans are made from the Earth, and the Earth is remade by human hands. Many earth scientists express this by stating that the Earth has entered a new geological epoch: the Anthropocene, the Age of Humans.
As scholars, scientists, campaigners, and citizens, we write with the conviction that knowledge and technology, applied with wisdom, might allow for a good, or even great, Anthropocene. A good Anthropocene demands that humans use their growing social, economic, and technological powers to make life better for people, stabilize the climate, and protect the natural world.
Stewart Brand, the man who helped usher in the environmental movement in the 1960s and '70s has been rethinking his positions on cities, nuclear power, genetic modification and geo-engineering. See this video recorded in 2014 for amazing information about nuclear, coal, natural gas, solar and wind energy for generating electricity.