Biofuel is considered to be a promising way to shift our energy needs to sustainable and climate-neutral sources. Replacing petroleum with fuels made from crops or other plants basically recycles CO2. The plants absorb it as they grow and release it when they are burned.
In the Northeast, fall is all about apples – apple picking, visiting orchards, and baking apple pie. Most of us would never suspect that our apples may have been treated with antibiotics – even those that are certified organic. How is that possible?
In the 1970s, the world’s fastest bird – the peregrine falcon – was nearing extinction in North America. The culprit: the toxic legacy of DDT. The widely used pesticide caused the birds to suffer reproductive problems, and their numbers plummeted.
For the past 20 years, the population of monarch butterflies has been dropping. In the past few years, it has been dropping catastrophically. In 1996, there were an estimated 1 billion monarchs in North America; today there are only about 35 million.