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More than a third of global greenhouse gases (GHGs) come from agriculture and a new theory suggest human can reverse global warming by sequestering several hundred billion tons of excess CO2 through regenerative, organic farming, ranching and land use. 

Up to 64 percent of above-ground biomass in selectively logged forests may consist of dead wood left over from logging damage, argues a paper published this week in Environmental Research Letters. 

A new study using evidence from a highly detailed ice core from West Antarctica shows a consistent link between abrupt temperature changes on Greenland and Antarctica during the last ice age, giving scientists a clearer picture of the link between climate in the northern and southern hemispheres.

Greenland climate during the last ice age was very unstable, the researchers say, characterized by a number of large, abrupt changes in mean annual temperature that each occurred within several decades. These so-called “Dansgaard-Oeschger events” took place every few thousand years during the last ice age. Temperature changes in Antarctica showed an opposite pattern, with Antarctica cooling when Greenland was warm, and vice versa.

The capacity to deliver continuous electricity for refrigeration is one of the central planks of the modern-day food distribution system.

Using fossil fuel-generated energy to refrigerate and freeze foods around the clock produces a lot of pollution – carbon and greenhouse gas emissions that are warming the global climate, as well as emissions of a range of potentially toxic chemicals that deplete the ozone layer and wind up in our waterways and soil.

Una nueva batería de alto rendimiento de “aluminio-litio”podría ser el avance técnico necesario para impulsar la toma de control de la energía renovable. Es seguro, utiliza abundantes materiales de bajo costo, se recarga en un minuto y soporta muchos miles de ciclos de recarga.

Si esta nueva batería está a la altura de las expectativas, podría impulsar un nuevo capítulo en la toma de control de la oferta de energía renovable del mundo.

Científicos de la Universidad de Stanford han inventado la primera batería de aluminio de alto rendimiento que es de una carga rápida, de larga duración, de bajo costo y segura.