"The California Department of Parks and Recreation proposes to upgrade approximately 2500 linear feet of the existing Schwan Lake Trail that originates at the Simpkins Swim Center to comply with the Americans with Disabilities Act and the Department's 'ADA Transition Plan.' Work would construct 800 linear feet of new rerouted trail and obliterate then restore 600 feet of highly erodible trail. The final length of the trail would be 2500 feet or .5 miles" -- page i.

Environmental Aspects of Zoonotic Diseases provides a definitive description, commentary and research needs of environmental aspects related to zoonotic diseases. There are many interrelated connections between the environment and zoonotic diseases such as: water, soil, air and agriculture. The book presents investigations of these connections, with specific reference to environmental processes such as: deforestation, floods, draughts, irrigation practices, soil transfer and their impact on bacterial, viral, fungal, and parasitological spread. Environmental aspects such as climate (tropical, sub-tropical, temperate, arid and semi-arid), developed and undeveloped countries, animal (domestic and wild) traffic animal border crossing, commercial animal trade, transportation, as well geography and weather on zoonosis, are also discussed and relevant scientific data is condensed and organized in order to give a better picture of interrelationship between the environment and current spread of zoonotic diseases. Altogether, the book presents a remarkable and a vast amount of potential future research directions based on the link: environment-vectors-pathogens-humans. The most up-to-date source of information on this increasingly important cross-disciplinary subject, Environmental Aspects of Zoonotic Diseases will be invaluable for environmentalists, veterinarians, medical staff, environmental engineers, government agencies and consultants working in this field. Authors: Prof. Robert Armon, Technion (Israel Institute of Technology), Haifa, Israel, Dr. Uta Cheruti, Technion (Israel Institute of Technology), Haifa, Israel

In most communities, land use regulations are based on a limited model that allows for only one end result: the production of more and more suburbia, composed of endless subdivisions and shopping centers, that ultimately covers every bit of countryside with "improvements." Fortunately, sensible alternatives to this approach do exist, and methods of developing land while at the same time conserving natural areas are available. In Conservation Design for Subdivisions, Randall G. Arendt explores better ways of designing new residential developments than we have typically seen in our communities. He presents a practical handbook for residential developers, site designers, local officials, and landowners that explains how to implement new ideas about land-use planning and environmental protection. Abundantly illustrated with site plans (many of them in color), floor plans, photographs, and renditions of houses and landscapes, it describes a series of simple and straightforward techniques that allows for land-conserving development. The author proposes a step-by-step approach to conserving natural areas by rearranging density on each development parcel as it is being planned so that only half (or less) of the buildable land is turned into houselots and streets. Homes are built in a less land-consumptive manner that allows the balance of property to be permanently protected and added to an interconnected network of green spaces and green corridors. Included in the volume are model zoning and subdivision ordinance provisions that can help citizens and local officials implement these innovative design ideas.

This report focuses on the risks of climate change to development in Sub-Saharan Africa, South East Asia and South Asia. Building on the 2012 report, Turn Down the Heat: Why a 4°C Warmer World Must be Avoided, this new scientific analysis examines the likely impacts of present day, 2°C and 4°C warming on agricultural production, water resources, and coastal vulnerability. It finds many significant climate and development impacts are already being felt in some regions, and that as warming increases from present day (0.8°C) to 2°C and 4°C, multiple threats of increasing extreme heat waves, sea-level rise, more severe storms, droughts and floods are expected to have further severe negative implications for the poorest and most vulnerable. The report finds that agricultural yields will be affected across the three regions, with repercussions for food security, economic growth, and poverty reduction. In addition, urban areas have been identified as new clusters of vulnerability with urban dwellers, particularly the urban poor, facing significant vulnerability to climate change. In Sub-Saharan Africa, under 3°C global warming, savannas are projected to decrease from their current levels to approximately one-seventh of total land area and threaten pastoral livelihoods. Under 4°C warming, total hyper-arid and arid areas are projected to expand by 10 percent. In South East Asia, under 2°C warming, heat extremes that are virtually absent today would cover nearly 60-70 percent of total land area in northern-hemisphere summer, adversely impacting ecosystems. Under 4°C warming, rural populations would face mounting pressures from sea-level rise, increased tropical cyclone intensity, storm surges, saltwater intrusions, and loss of marine ecosystem services. In South Asia, the potential sudden onset of disturbances to the monsoon system and rising peak temperatures would put water and food resources at severe risk. Well before 2°C warming occurs, substantial reductions in the frequency of low snow years is projected to cause substantial reductions in dry season flow, threatening agriculture. Many of the worst climate impacts could still be avoided by holding warming below 2°C, but the window for action is closing rapidly. Urgent action is also needed to build resilience to a rapidly warming world that will pose significant risks to agriculture, water resources, coastal infrastructure, and human health.

First published in 1927.