Volcanoes are complicated, and we don’t have universally applicable ways to predict when they might erupt. Measurements of seismicity, gas emissions and ground deformation are all useful in trying to figure out what volcanoes are up to. However, it is unlikely that will ever have definitive prediction techniques.
Hydraulic fracturing – better known as fracking – is a method of extracting oil and gas from shale deposits in which millions of gallons of freshwater and chemicals are injected into deep underground deposits. There has been a great deal of concern related to the effects that this process has on water quality and also on the stability of the ground in the vicinity of where it takes place.
There is quite a bit of effort underway to reduce the amount of pollution automobiles dump into the atmosphere. The expanding role of electric cars is a big part of this.
Global bee populations have been drastically declining as a result of habitat loss, pesticides and climate change. But studies are showing that planting flower patches in urban gardens and green spaces can make a real difference in restoring natural pollinators. There are already positive results in cities from Chicago to London to Melbourne.
