ScienceDaily: Top Environment News |
- Taking the lead out of a promising solar cell: Environmentally friendly solar cell pushes forward the 'next big thing in photovoltaics'
- Global warming not uniform around the globe: Some areas were recently cooling
- New insight may help predict volcanic eruption behavior
| Posted: 04 May 2014 10:32 AM PDT Researchers are the first to develop a solar cell with good efficiency that uses tin instead of lead perovskite as the harvester of light. The low-cost, environmentally friendly solar cell can be made easily using 'bench' chemistry -- no fancy equipment or hazardous materials. Perovskite solar cells are being touted as the 'next big thing in photovoltaics.' Lead perovskite has achieved 15 percent efficiency, and tin perovskite should be able to match -- and possibly surpass -- that.  |
| Global warming not uniform around the globe: Some areas were recently cooling Posted: 04 May 2014 10:32 AM PDT New research shows the first detailed look at global land surface warming trends over the last 100 years, illustrating precisely when and where different areas of the world started to warm up or cool down.  |
| New insight may help predict volcanic eruption behavior Posted: 04 May 2014 10:32 AM PDT A new discovery in the study of how lava dome volcanoes erupt may help in the development of methods to predict how a volcanic eruption will behave, say scientists. Volcanologists have discovered that a process called frictional melting plays a role in determining how a volcano will erupt, by dictating how fast magma can ascend to the surface, and how much resistance it faces en-route.  |
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