Posts Tagged ‘global warming’

Increasing carbon dioxide levels get a lot of press for creating environmental problems in the atmosphere, but that’s not the only place the higher-than-normal amounts can cause problems. Ocean waters are becoming more acidic as they absorb more and more carbon dioxide from the atmosphere. Certain chemicals in seawater normally dampen the sound waves by absorbing the energy from sound into chemical reactions. More carbon dioxide means less of these chemical reactions, so sound will not be absorbed as readily. Sounds will then travel farther and be louder than normal at a given distance.

This can create problems for some sea animals that use sound to communicate with each other and find their prey. Dolphins are one group of sea mammals that depend on sounds.  If there are a lot of residual noises from ships and sonar, they might have problems finding food, or finding each other to regroup. Researchers will continue to study this phenomenon to see if problems develop. It might actually turn out to be a benefit, if they are able to locate each other from farther away. Time will tell, but hopefully in the meantime we can figure out how to reduce our carbon emissions and help out a bit that way.


Article condensed from: The New York Times, Tuesday, December 29, 2009

“More CO2 Could Create A Racket in the Oceans”

Read Full Post »

It’s great to take a metaphorical stroll around the ethernet, just to see what’s up in environmental-related blog articles. I thought I’d share some links that may be of interest:

First, some good news from India about an environmental group that was able to convince officials not to build a neutrino observatory in an elephant corridor.

Next, A National Geographic Moment about aphids, ants, and a bird.

Then, if you’d like a simple metaphor that can help you understand global warming, read this.

Finally, something you can do: some Green Grocery Shopping with reusable bags – even the veggie bags!

Read Full Post »