Temperatures in the Contiguous 48 United States, 1901-2013

Submitted by c.bernhardt.14 on Thu, 06/05/2014 - 11:06
Source
http://www.epa.gov/climatechange/science/indicators/weather-climate/temperature.html

“This figure shows how annual average temperatures in the contiguous 48 states have changed since 1901. Surface data come from land-based weather stations. Satellite measurements cover the lower troposphere, which is the lowest level of the Earth’s atmosphere. “UAH” and “RSS” represent two different methods of analyzing the original satellite measurements. This graph uses the 1901–2000 average as a baseline for depicting change. Choosing a different baseline period would not change the shape of the data over time.” – United States Environmental Protection Agency

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Water Woes: Vast US Aquifer Is Being Tapped Out

08-25-2013

Denise Chow

Nearly 70 percent of the groundwater stored in parts of the United States' High Plains Aquifer — a vast underground reservoir that stretches through eight states, from South Dakota to Texas, and supplies 30 percent of the nation's irrigated groundwater — could be used up within 50 years, unless c

India’s energy demand projected to surge

Simon Denyer and Rama Lakshmi

NEW DELHI — Like China two decades ago and the United States in 1950, India stands on the cusp of transformational economic and social change, a jumping-off point at which the demand for electricity is about to explode.

Renewables-based Desalination: A Solution to MENA's Water Crisis

Sep 2, 2013 - Dr. Nasser Saidi, Chairman, Clean Energy Business Council - renewableenergyworld.com

"You never miss the water till the well runs dry" is an old idiom that is becoming a harsh reality for the Middle East and North Africa region and globally. Water scarcity is now this century's imminent greatest problem, a clear and present danger.

Electricity use and GDP projection

Submitted by eortiz5000 on Wed, 05/29/2013 - 09:29
Source
http://econintersect.com/b2evolution/blog1.php/2013/03/25/electricity-usage-efficiency-5-fold-improvement-in-60-years

The efficiency of energy use in growing the U.S. economy has made dramatic improvements over the past 60 years.  Before the mid-1980s electrical energy usage grew faster than GDP growth but since then the relationship has reversed.  Projections by the U.S. EIA (U.S.

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The urban island effect

Submitted by eortiz5000 on Wed, 05/29/2013 - 09:23

This hypothetical graph shows how daytime and nighttime temperature vary in the vicinity of a large city. Notice how daytime temperature is higher over heat-reflecting buildings and lower over a water body. The urban heat island effect causes cities to run warmer than surrounding rural areas, especially at night. Development produces heat islands by replacing vegetation, particularly forests, with pavement and other urban infrastructure.

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