China’s carbon dioxide emissions now outstrip those of other countries and its domestic air quality is severely degraded, especially in urban areas. Its sheer size and its growing, fossil-fuel-powered economy mean that China’s economic and environmental policy choices will have an outsized effect on the global environmental future. Over the last decade, China has pursued policies that target both fossil fuel use and atmospheric emissions, but these efforts have been substantially overwhelmed by the country’s increasing energy demands.
Climate engineering‚ÄĒwhich could slow the pace of global warming by injecting reflective particles into the upper atmosphere‚ÄĒhas emerged in recent years as an extremely controversial technology. And for good reason: it carries unknown risks and it may undermine commitments to conserving energy. Some critics also view it as an immoral human breach of the natural world. The latter objection, David Keith argues in A Scientist‚Äôs Case for Climate Engineering, is groundless; we have been using technology to alter our environment for years.
The “golden era” of American environmental lawmaking in the 1960s and 1970s saw twenty-two pieces of major environmental legislation (including the Clean Air Act, the Clean Water Act, and the Endangered Species Act) passed by bipartisan majorities in Congress and signed into law by presidents of both parties. But since then partisanship, the dramatic movement of Republicans to the right, and political brinksmanship have led to legislative gridlock on environmental issues.
Urbanization and globalization have shaped the last hundred years. These two dominant trends are mutually reinforcing: globalization links countries through the networked communications of urban hubs. The urban population now generates more than eighty percent of global GDP. Cities account for enormous flows of energy and materials—inflows of goods and services and outflows of waste. Thus urban environmental management critically affects global sustainability.
The future is not what it used to be because we can no longer rely on the comforting assumption that it will resemble the past. Past abundance of fuel, for example, does not imply unending abundance. Infinite growth on a finite planet is not possible.
In colleges and universities across the United States, students, faculty, and staff are forging new paths to sustainability. From private liberal arts colleges to major research institutions to community colleges, sustainability concerns are being integrated into curricula, policies, and programs. New divisions, degree programs, and courses of study cross traditional disciplinary boundaries; Sustainability Councils become part of campus governance; and new sustainability issues link to historic social and educational missions.
Buildings are the nation’s greatest energy consumers. Forty percent of all our energy is used for heating, cooling, lighting, and powering machines and devices in buildings. And despite decades of investment in green construction technologies, residential and commercial buildings remain stubbornly energy inefficient.
The extraordinary and adorable antics of penguins attract thousands of tourists every year to remote and icy locations. Penguins never fail to make people smile; wild penguins waddle up and inspect us as if we were just another kind of flightless creature walking on two legs. In this book, the vibrant world of penguins is shown in all its glory by David Tipling, who has trekked to beautiful and faraway locations to capture these birds in their natural habitats.
For as long has humans have lived in communities, storytelling has bound people to each other and to their environments. In recent times, scholars have noted how social networks arise around issues of resource and ecological management.
Attempts by local governments to privatize water services have met with furious opposition. Activists argue that to give private companies control of the water supply is to turn water from a common resource into a marketized commodity. Moreover, to cede local power to a global corporation puts communities at the center of controversies over economic globalization.