Climate Change: Are You Cool? (RUCOOL)

One of the most frequent arguments voiced by climate change deniers is, "there's no data that show that." I have to chuckle every time someone says that because what the rest of us hear is, "I'm too stupid to find the data." A plethora of data, analyzed and raw, is out there for you, me everyone, and anyone to examine.

Even better, much of that data has been made available in user-friendly formats. One of my favorite places to visit to see and play with the data is the Rutgers University Coastal Ocean Observing Lab, RUCOOL.

Sea Surface Termperature Data available at RUCOOL

For those who like to get right to the end result, check out COOL Research, where you can download the latest research reports.

If you want to know about the technology used to collect and analyze data, check out the COOL Technology page.

Want to get right to the sea surface temperature data to see it for yourself? You can do that here and here.

Climate change and rising seawater temperatures are complex topics and making sense of the data can be a challenge. Scientists have been studying climate change for over a century, and have spent a good deal of time learning about the chemistry, physics, biology, and geology that go into understanding the Earth, and a lot more time gathering and analyzing data on it. It is true that for as much as we know about the Earth, there's a whole lot we don't know. It's also true that just because we don't know everything doesn't mean that what we do know is wrong.

What we do know, without any doubt, is that the ocean is getting warmer, and at a faster rate than has happened in millennia. Why should that matter? Because the oceans continuously interact with the atmosphere, sea surface temperature has a profound effect on global climate. Increasing sea surface temperature can affect what species of plants, animals, and microbes are present in a location, threaten corals and other sensitive organisms, and change the frequency and intensity of harmful algal blooms HABs (discussed in my previous post).

Bleached coral due to increased water temperatures.
(Photo courtesy of NOAA Photo Library.)

Don't care about any of that? Consider those changes could reduce fish populations, including popular food species, leading to less (and more expensive) seafood, and job losses to the fishing industry.

Commercial fishing fleet, LI, NY.
(Photo courtesy of the NOAA Photo Library)

Don't care about any of that?  Increases in sea surface temperature mean more atmospheric water vapor over the oceans.  This water vapor feeds weather systems that produce rain and snow, meaning more frequent and more severe storm events. Changes in sea surface temperature can also shift storm tracks, potentially contributing to droughts in some areas.

Folly Beach, SC after Hurricane Hugo, 1989
(Photo courtesy of the NOAA Photo Library)

With any luck, climate change deniers and those on the fence will get their heads out of their asses before it's too late, stop listening to politicians who don't know anything except how to get re-elected, and start listening to scientists who have devoted their lives to understanding what's happening in the world around us--the one we live in. Even if it's already too late to reverse the trend, as many scientists believe, it isn't too late to start preparing for and mitigating against the future impacts.

For more information, data, and details on how scientists study global climate change, check out these sites.

http://www.epa.gov/climatechange/science/indicators/oceans/sea-surface-temp.html

http://rucool.marine.rutgers.edu/

http://www.skepticalscience.com/

http://www.whrc.org/resources/primer_home.html

HARMFUL ALGAL BLOOMS AND YOU!

Harmful Algal Blooms (HABs) occur when usually harmless phytoplankton--microscopic or very small, photosynthetic marine organisms--reach high densities. Their numbers rapidly increase in a given area to the point where they go from harmless to hazardous.

The hazard they present can come from their anatomy, physiology or metabolism.

ANATOMY
Some diatoms, like those pictured below, have sharp spines that can cause fish to suffocate by getting lodged in their gills and causing acute inflammation. Some microscopic algae produce mucus, clogging gills and leading to fish's respiratory failure.

Fish with spiny diatoms in its gills.
(Image from www.bigelow.org)
 

The spiny diatom Corethron pennatum 
(image from www.phys.org)

PHYSIOLOGY AND METABOLISM
Some phytoplankton affect theorganisms that prey on them by interfering with feeding. The mucus the phytoplankton produce might make them unpalatable or indigestible. Others have such low nutritional value that the organisms that eat them actually starve to death!

Perhaps the most well-known HABs are those that produce toxic blooms. We commonly call those "red tides" although the water color isn't necessarily red, but can be yellow, green, or brown due to the sheer numbers of phytoplankton. Some of the algae that cause the color changes are capable of producing powerful toxins that are harmful or deadly to other species. The toxins may kill fish, injure marine invertebrates, and cause human illness or death from ingesting shellfish that have accumulated the toxin in their tissue. Some of the human illnesses from ingesting contaminated seafood include Amnesic Shellfish Poisoning (ASP), Diarrhetic Shellfish Poisoning (DSP), Neurotoxic Shellfish Poisoning (NSP), Paralytic Shellfish Poisoning (PSP), and Ciguaterra Fish Poisoning (CFP).

A "red tide" bloom.
          From The Baltic Sea Portal (Itameriportaali).

While phytoplankton use photosynthesis to create their food source and release oxygen into the environment, their high productivity and short lifespan means a high turnover of biomass---lots of dead microalgae. As those decompose, they quickly deplete all the oxygen in an area, resulting anoxia---low or no oxygen in the surrounding water. Their decomposition also results in the formation of toxic sulfides in the water. The lack of oxygen and production of sulfides creates a deadly scenario for most marine life that can lead to massive fish die-offs.

Fish die-off due to anoxic conditions from a HAB
(photo from G. Pitcher, via www.bigelow.org)

PREDATION
At least one species of phytoplankton, Pfiesteria piscicida, is actually a predator, killing and then feeding on fish in the waters they inhabit.

WHO CARES?

We all should. HABs affect everyone! They're a global threat to living resources, fishing, tourism, and human health because the number and intensity of these events appear to be increasing in many countries. In the last two decades, HABs are estimated to have caused as much as $1 billion in losses to coastal resources and communities (NOAA). Check HERE for more information on the socioeconomic impacts of HABs (WHOI).

Preventing and eliminating harmful algal blooms is no easy tasks. There are numerous factors that influence the formation, distribution and duration of blooms. It’s difficult to control one factor in the environment, let alone all factors for all algae in all locations. In addition, any action taken to prevent or to remove a bloom has consequences for the other organisms in the environment.

A combination of factors contribute to the development of HABs such as the presence of  nutrients, warm temperatures and lots of light. Rising ocean temperatures from climate change, increased nutrient run-off from land due to poor land-development practices and a loss of wetlands, and the break down of marine food chains due to overfishing all play roles and are all increasing, so we can most likely expect to see more and more HABs in the future. 

Researchers are constantly trying to gain a better understanding of HABs to help find ways to control their development and reduce their impacts. Early detection of their formation is critical to prevent impacts to human health by issuing fishery and beach closures in impacted areas. 

If that makes you feel helpless to do anything about HABs, you're NOT! You can help by asking state and local lawmakers to implement better land-use planning and wetland preservation to protect coastal water quality, learning the facts about climate change, and demanding good, research-based science, not hype, someone's political- or financial-gain, or fear, drive government decision-making.



FOR MORE ON HABS, CHECK OUT THESE SITES

• Bigelow Lab for Ocean Science  http://www.bigelow.org/edhab/help_hab.html
• Environmental Health, 2008. Impacts of climate variability and future climate change on harmful algal blooms and human health. http://www.biomedcentral.com/content/pdf/1476-069X-7-S2-S4.pdf
• Environmental Protection Agency http://www2.epa.gov/sites/production/files/documents/climatehabs.pdf
• National Oceanic and Atmospheric Administration, National Ocean Service  http://oceanservice.noaa.gov/education/lessons/bad_algae.html
• Texas A&M, Ocean World Online Textbook http://oceanworld.tamu.edu/resources/oceanography-book/harmfulagalblooms.htm
• Woods Hole Oceanographic Institute https://www.whoi.edu/redtide/home