This paper brings together over 250 published and unpublished studies on the environmental properties, fate, and toxicity of the four major, high-volume surfactant classes and relevant feedstocks. The surfactants and feedstocks covered include alcohol sulfate or alcohol sulfate (AS), alcohol ethoxysulfate (AES), linear alkylbenzene sulfonate (LAS), alcohol ethoxylate (AE), and long-chain alcohol (LCOH). These chemicals are used in a wide range of personal care and cleaning products.
As water utilities across North America undertake capital campaigns to finance the replacement and expansion of their systems, the need for confident revenue projections grows.
The urban heat island (UHI), a common phenomenon in which surface temperatures are higher in urban areas than in surrounding rural areas, represents one of the most significant human-induced changes to Earth’s surface climate. Even though they are localized hotspots in the landscape, UHIs have a profound impact on the lives of urban residents, who comprise more than half of the world’s population. A barrier to UHI mitigation is the lack of quantitative attribution of the various contributions to UHI intensity (expressed as the temperature difference between urban and rural areas, ΔT).
The FAO Food Price Index was down for a third consecutive month in June, a decline mostly influenced by lower wheat, maize and palm oil prices that reflected ample supplies and improved global production prospects for these commodities.
Guided by deeply held cultural values, First Nations in Canada are rapidly regaining legal authority to manage natural resources. We present a research collaboration among academics, tribal government, provincial and federal government, resource managers, conservation practitioners, and community leaders supporting First Nation resource authority and stewardship. First, we present results from a molecular genetics study of grizzly bears inhabiting an important conservation area within the territory of the Heiltsuk First Nation in coastal British Columbia.
Every year, disasters related to weather, climate and water hazards cause significant loss of life and set back economic and social development by years, if not decades From 1970 to 2012, 8 835 disasters, 1 94 million deaths and US$ 2 4 trillion of economic losses were reported globally as a result of droughts, floods, windstorms, tropical cyclo
Approaches to integrated landscape management are currently garnering new interest as scientists, policymakers, and local stakeholders recognize the need to increase the multi-functionality of agricultural landscapes for food production, livelihood improvement, and ecosystem conservation. Such approaches have been attempted in many parts of Latin America and the Caribbean (LAC) but to date there has been no systematic assessment of their characteristics, outcomes, and limitations.
Agroforestry provides a living for at least 1.2 billion people—approximately a sixth of humanity —and nearly all of us use and consume some of the goods and services it provides.
