Earth system scientists say that there are four major human-caused forces that threaten to cause irreversible and abrupt environmental upheaval: climate change, deforestation, biodiversity loss, and excess nitrogen.
This has been a particularly terrible hurricane season. Harvey, Irma, Jose, Maria, and Nate all formed in the Atlantic and headed for North America. People in Houston, Florida, all over the Caribbean, and especially Puerto Rico are trying to recover from the effects of these powerful storms.
Coral reefs are essential for much of marine life and are the basis of many commercial fisheries. In places from Florida to Australia, they are major tourist attractions. Estimates are that the economic impact of coral reefs is more than $375 billion a year. And apart from all of that, they are some of the most beautiful places on the planet.
Excess nitrogen in the environment is a big problem. The most visible aspect of the problem is the spread of toxic algae blooms in oceans, lakes and other bodies of water. But there are other effects as well such as unwanted alterations to ecosystems.
New York Governor Andrew Cuomo recently announced that the state’s support for solar power initiatives has resulted in an 800% increase in industry growth since 2011. New York’s various renewable energy programs have resulted in $1.5 billion in investments. The NY-Sun Initiative has produce a 10-fold increase in solar projects in several regions of the state. The Mohawk Valley led the way with an almost 16-fold increase in solar capacity.
Coastal floodplains across the southeastern and mid-Atlantic regions of the United States are at the leading edge of climate change’s effect on what were largely freshwater ecosystems. Because of the low elevation and flat or gently sloping characteristics of coastal forests in these areas, they are among the most vulnerable globally to saltwater intrusion.
One of the thorniest problems arising from the changing climate is the degradation of inhabited areas that forces entire communities to relocate permanently. Basically, we don’t really have the infrastructure in place to deal with such occurrences.
Nobody really knows how many alligators live in Florida. It’s estimated that there are anywhere from 1.3 million to 2 million alligators in the Sunshine State, which means there’s one gator for every 10-15 Floridians. It’s this ratio that makes it just about impossible for someone living in Florida not to encounter an alligator at some point. And if you have seen one recently and thought it looked a little bigger, you may be onto something.
In 2010, an explosion on the BP-owned Deepwater Horizon drilling rig released more than 200 million gallons of oil into the Gulf of Mexico. Some of the oil was recovered, burned, or dispersed at sea, while some washed up onto the shorelines of Texas, Louisiana, Mississippi, Alabama, and Florida.
The Caribbean island nation of Grenada has installed a wind and solar powered off-grid streetlight. An Irish company called airsynergy has developed the underlying technology which it calls a Remote Power Unit or RPU.
People continue to find new ways to generate energy from unusual sources. A team of scientists at several universities recently reported on a new fuel cell that uses tomato waste left over from harvests in Florida.
Complex ecosystems often create complex interrelationships between animals. One of the more surprising ones is that between waterbirds and alligators in the Florida Everglades.