CES210 Chapter One Notes
CES210 Chapter One Notes CES 210
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This 2 page Class Notes was uploaded by Emma Eiden on Tuesday October 4, 2016. The Class Notes belongs to CES 210 at University of Wisconsin - Milwaukee taught by Mai Phillips in Fall 2016. Since its upload, it has received 53 views. For similar materials see Introduction to Conservation and Environmental Science in GN Natural Science at University of Wisconsin - Milwaukee.
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Date Created: 10/04/16
CES210: Conversational and Environmental Studies Chapter One: Understanding our Environment Renewable Energy in China - More than a million gleaming solar collectors decorate the rooftops of the city of 3 million residents - More than 99% of all households get hot water and space heating from renewable energy - 2008: Rizhao officially became carbon neural, one of the first four cities in the world to reach this milestone, a remarkable accomplishment in a developing country WHAT IS ENIVRONMENTAL SCIENCE? Environment- the circumstances or conditions that surround an organism or group of organisms, or the complex of social or cultural conditions that affect an individual or community Environmental Science- the systematic study of our environment and our proper place in it What is the state of our environment today? - Understanding improvements over time also reminds us that the hard work of generations before us has also been fruitful. We inhabit an extraordinary natural world that we inherited and that we hope to pass on to future generations in as good a condition- perhaps even better- than when we arrived We face persistent challenges Climate Change - In the Antarctic and Artic, seasons are changing, sea ice is disappearing, and permafrost is melting…rising sea levels Clean Water - Already at least 1.1 billion people lack an adequate supply of safe drinking water, and more than twice that many don’t have modern sanitation. Polluted water and inadequate sanitation are estimated to contribute to illness in more than 1.2 billion people annually, and to the death of 15 million children per year Hunger - Over the past century, global food production has more than kept pace with human population growth, but hunger persists in many areas. In a world of food surpluses, the United Nations estimated that some 925 million people are chronically undernourished, often because of drought, floods, displacement from land, or war. - Soil scientists report that about two-thirds of all agricultural lands show signs of degradation Energy - Cleaner renewable energy resources, such as those now being produced in China, including solar power, wind, geothermal, and biomass, together with conservation, could give us cleaner, less destructive options if we invest appropriately Biodiversity Loss - Biologists report that habitat destruction, overexploitation, pollution, and introduction of exotic organisms are eliminating species at a rate comparable to the great extinction that marked the end of the age of dinosaurs. The UN Environment Programme reports that, over the past century, more than 800 species have disappeared and at least 10,000 species are now considered threatened Air Pollution - In developing areas, especially China and India, air quality has worsened dramatically in recent years. - Over southern Asia, for example, satellite images recently revealed that a 3- km (2 mile)- think toxic haze of ash, acids, aerosols, dust, and photochemical products regularly covers the entire Indian subcontinent for much of the year There are also many signs of hope Signs of progress abound. Often one of our biggest challenges understands how much worse conditions used to be Population and Pollution - Many cities in Europe and North America are cleaner and much more livable now than they were a century ago. Clean technology has helped eliminate pollution and save resources. - Over the last 20 years, the average number of children born per woman worldwide has decreased from 6.1 to 2.7. The UN Population Division predicts that by 2050 all developed countries and 75% of the developing world will experience a below-replacement fertility rate of 2.1 children per woman. This prediction suggests that the world population will stabilize at about 8.9 billion rather than 9.3 billion, as previously estimated Health - The incidence of life-threatening infectious diseases has been reduced sharply in most countries during the past century, while life expectancies have nearly doubled on average. - Smallpox has been completely eradicated, and polio has been vanquished except in a few countries. Since 1990 more than 800 million people have gained access to improved water supplies and modern sanitation Sustainable Resource Use and Habitat Conservation - Brazil, which has the largest area of tropical rainforest in the world, has reduced forest destruction by nearly two-thirds in the past five years. In addition to protecting endangered species, this is great news in the battle to stabilize out global climate Humanity’s ecological footprint has nearly tripled since 1961, when we began to collect global environmental data Additional Terms to Study (my quizlet) : https://quizlet.com/151048962/conservation-and-environmental-science-chapter- one-understanding-our-environment-flash-cards/