Solar power has been growing rapidly in the U.S. state of California because of high insolation, community support, declining solar costs, and a renewable portfolio standard which requires that 60% of California's electricity come from renewable resources by 2030, with 100% by 2045. Much of this is expected to come…

Biodiesel is a renewable biofuel, a form of diesel fuel, derived from biological sources like vegetable oils, animal fats, or recycled greases, and consisting of long-chain fatty acid esters. It is typically made from fats.

Jane Isabel Jacobs (née Butzner; 4 May 1916 – 25 April 2006) was an American-Canadian journalist, author, theorist, and activist who influenced urban studies, sociology, and economics. Her book The Death and Life of Great American Cities (1961) argued that "urban renewal" and "slum clearance" did not respect the needs…

Italian inventions and discoveries are objects, processes or techniques invented, innovated or discovered, partially or entirely, by Italians. Italian people – living in the Italic peninsula or abroad – have been throughout history the source of important inventions and innovations in the fields of writing, calendar,…

The S&P SmallCap 600 (S&P 600) stock market index, maintained by S&P Dow Jones Indices, comprises the common stocks of 600 small-cap, mostly American, companies. Although called the "S&P 600", the index contains 603 stocks because it includes two share classes of stock from three of its component companies (Central…

The economics of nuclear power concerns the costs, financial risks, and economic factors involved in generating electricity from nuclear reactors, including the capital required to build plants, the operating and fuel costs over their lifetime, and the expenses of decommissioning and managing radioactive waste. It…

Green infrastructure or blue-green infrastructure refers to a network that provides the "ingredients" for solving urban and climatic challenges by building with nature. The main components of this approach include stormwater management, climate adaptation, the reduction of heat stress, increasing biodiversity, food…

A rooftop solar power system, or rooftop PV system, is a photovoltaic (PV) system that has its electricity-generating solar panels mounted on the rooftop of a residential or commercial building or structure. The various components of such a system include photovoltaic modules, mounting systems, cables, solar inverters…

Concentrated solar power (CSP), also called concentrating solar power or concentrated solar thermal, involves systems that collect solar heat for multiple purposes like cooking, desalination, or the generation of electric solar power, by using mirrors to concentrate a large area of sunlight toward a receiver. …

70 Pine Street (formerly known as the 60 Wall Tower, Cities Service Building, and American International Building) is a 67-story, 952-foot (290 m) residential skyscraper in the Financial District of Lower Manhattan, New York City, New York, U.S. Designed by the architectural firm of Clinton & Russell, Holton & George…