Earth

Preventing Soil Erosion Using Waffles

Subject(s):
Ian Pearson's picture

Sometimes simple ideas work, and this one is pretty simple.

Arctic Ice Melt Season Increasing Several Days Per Decade Says Study

Len Rosen's picture

The Arctic is the one area of the globe most susceptible to atmospheric warming and according to the latest data from the National Snow and Ice Data Center and NASA, the season of sea ice melt continues to lengthen every decade.

Island Nations Build Ocean Thermal Power to Reduce Dependency on Fossil Fuels

Len Rosen's picture

Seawater is proving to be one way to combat climate change by reducing fossil fuel dependency for some ocean island nations. Taking a page from land-based geothermal power which uses the coolness below ground in heat exchange systems, islands are using the thermal energy gradient in a column of seawater to generate electricity.

IPCC Lays Out its Climate Change Mitigation Strategy - The Key Is to Decarbonize

Subject(s):
Len Rosen's picture

Last week, the IPCC gave us its weather forecast for climate change through the rest of the century. This weekend, the contributing scientists gave us what should be marching orders.

Energy Update: Hybrid Solar Power Could Be a Renewable Game Changer

Subject(s):
Len Rosen's picture

April 12, 2014 - There are two types of solar renewable technologies. The first, solar photovoltaics, is at best marginally efficient when converting energy from sunlight into electricity. And when the sun is not shining...well you get it. The second, solar thermal involves putting mirrors on motors to track sunlight.

Energy Update: Hybrid Solar Power Could Be a Renewable Game Changer

Subject(s):
Len Rosen's picture

There are two types of solar renewable technologies. The first, solar photovoltaics, is at best marginally efficient when converting energy from sunlight into electricity. The second, solar thermal involves putting mirrors on motors to track sunlight.

Permafrost, Methane, Carbon Dioxide and Climate Change

Subject(s):
Len Rosen's picture

A new study opens with the following statement: "Carbon release due to permafrost thaw represents a potentially major positive climate change feedback." I can just see climate change skeptics jumping on the words "positive climate change" thinking that this is no doubt a good thing.

Architects and Engineers Address Global Warming

Len Rosen's picture

With atmospheric temperatures creeping upward from the tropics to the poles, air conditioning in dwellings and workplaces will be in great demand. The estimate from the Intergovernmental Panel on Climate Change states we will see a rise in energy demand around air conditioning from 300 Terawatt-hours in 2000 to 4,000 Terawatt-hours by 2050. Increased energy demand, of course, has implications for greenhouse gas emissions.

Could Life Have Fueled Death in Earth's Past? Are There Lessons for the Present and Future?

Len Rosen's picture

The Great Dying happened 252 million years ago. This mass extinction event at the end of the Permian wiped out 90% of life on Earth. What caused it?

There are lots of theories.

Planetary Habitability Lab Keeping Catalogue of Planets We Humans Can Move To

Subject(s):
Len Rosen's picture

The University of Puerto Rico at Arecibo is keeping a catalog of habitable exoplanets, planets that sit within the Goldilocks Zone surrounding a star. The image below illustrates the relative position of Goldilocks Zones around three different star types.

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