Glacial Rebound: The Not So Solid Earth An iceberg floats in Disko Bay, near Ilulissat, Greenland, on July 24, 2015. The massive Greenland ice sheet is shedding about 300 gigatons of ice a year into the ocean, making it the single largest source of sea level rise from melting ice. Credits: NASA/Saskia Madlener Sea level rise is a natural consequence of the warming of our planet. Euclid: The Game - Tutorial Goal: Construct a line segment from A to B. ✓ Construct a ray from C to D. ✓ Construct a circle with center E and radius EF. ✓ Construct a circle with center F and radius EF. ✓ Construct a (black) point at the intersection of AB and the ray CD. ✓ Hint: Hold your mouse on a tool to get a brief instruction how the tool works. Well done !
Change: Glacier Mass Balance In Earth’s highest mountains and across the land in both polar regions, brief summers were long overpowered by snowy winters. Over many centuries, layers of snow accumulated to form thick glaciers. Present since the last ice age, most of the world’s glaciers are now shrinking or disappearing altogether. Explore this interactive graph: Click and drag either axis to view different parts of the graph. Solenergi Solar energy has tremendous potential. What is interesting in solar power generation is how much energy can be generated per month without disruption. This is beneficial as electric energy cannot be stored easily over longer periods. One might think that solar generation would be better the closer you are to the equator, but actually, due to cloud cover the best conditions for solar generation are in the deserts around the Tropic of Cancer and the Tropic of Capricorn at approximately 22 degrees north and 22 degrees south, respectively. Link: World Solar Insolation Values
Glacier recession - AntarcticGlaciers.org Worldwide, glaciers are shrinking and receding. In fact, glacier recession and thermal expansion of the ocean together account for 75% of today’s observed sea level rise. Glaciers are small and have short response times, so they react quickly to changes in air temperature and precipitation. China Is Replacing 70,000 Taxis With Electric Cars The Future of Taxis Electric vehicles have been growing in popularity among fleet operators, and soon, Beijing may find itself earning a reputation as the hub of the electric taxi. The Chinese city is home to one of the most important taxi fleets in the world, numbering around 70,000, and under a new program for air pollution control that will begin implementation this year, those taxis will be going electric. According to a report by National Business Daily, the transition to electric cars will cover all new taxis registered in the region. “All newly added or replaced taxis in the city of Beijing will be converted from gasoline to electricity, according to a draft work program on air pollution control for Beijing, Tianjin, Hebei, and surrounding areas in 2017,” the report reads.
Climate change could lead to loss of biodiversity in glacier-fed rivers By RTCC Staff Climate change induced glacier retreat could impact the ecosystems of river relying on the water run off (Vironevaeh/creative commons) Climate change and glacier retreat could impact biodiversity of river systems, according to new research. The study, published in Nature Climate Change examined the biodiversity loss of glacier-fed river systems across the Ecuador Andes, the Swiss and Italian Alps and the Coastal Range Mountains in southeast Alaska. The researchers found evidence in all regions that several aquatic macroinvertebrates – those large enough to be seen without a microscope – began to disappear in regions where a high disappearance of glacial coverage in the river’s catchment was witnessed. Between 8 to 14 species could be lost completely with the complete disappearance of glaciers in the region, according to the scientists.
The Solar Industry Now Employs Twice As Many People As Coal The Rise of Renewables The US’ renewable energy industry is currently thriving. A survey released by The Solar Foundation shows that the solar industry has nearly tripled employment since they started tracking its growth back in 2010. According to the study, 260,000 people are now employed by the solar industry. The majority of positions are currently in installation, with workers earning an average of $25.96 per hour. The biggest market so far, is residential, which encompasses 41 percent of available jobs; with the commercial and utility-scale markets trailing behind.
Global Warming Systems View Simulations of the Possible Scenarios One aspect of the systems view that is very useful is the construction of simulation models that will predict what will happen if the current processes continue at the same rate. A simple simulation is the projection of when oil or natural gas reserves will be depleted if they are consumed at the same rate as they are now compared to if there is the same rate of growth of the consumption. This is a very enlightening comparison that shows that a resource that might last 200 years at the current rate of consumption (barrels of oil per year for example) might only last 50 years if we project that the rate of growth of consumption continues at 5% per year. We have seen other examples of this type of modeling when we studied population growth models. Similar, but more involved, simulations can be constructed for human population growth, energy resource depletion, pollution, and quality of life indicators.
Ireland Passes Historic Legislation, Set to be the First Nation To Completely Cut Fossil Fuels In Brief Ireland's Parliament has passed a bill that stops the country from investing in fossil fuels as part of an €8 billion government fund. Ireland’s divestment is the most aggressive move taken against fossil fuels to date, but they are certainly not alone in their efforts to move towards clean energy.
Athabasca Glacier: a tragic vanishing act Posted on 26 August 2014 by Andy Skuce The Athabasca Glacier in the Canadian Rocky Mountains is probably the easiest glacier in the world to access by car. It's just a few hundred metres' stroll from the nearest parking lot on the magnificent Icefields Parkway in Alberta. The problem is, the stroll keeps getting longer by about 10 metres every year.