Natural Sunblock: Beards

Above is an excellent example of beautiful facial hair that does a good job of blocking the sun. That’s right, for those of you who can grow beards – you should. Not only do beards look good they also can serve as sunblock.

But how much sun does a good beard block if a good beard could block sun?

Answer? It blocks the sun that a good beard could block if a good beard could block sun.* At least, depending on the angle, and the thickness of the beard. But how to find out PRECISELY?!

Well for that you need SCIENCE. Science and fake heads with beards on them. On a weathervane. Really.

Parisi et al. “DOSIMETRIC INVESTIGATION OF THE SOLAR ERYTHEMAL
UV RADIATION PROTECTION PROVIDED BY BEARDS AND MOUSTACHES” Radiation Protection Dosimetry, 2012.

Read more here.

Great Lakes get More Protection

In a demonstration of the usefulness of having an embassy in another country, Canada and the USA have renewed a pact to protect the Great Lakes. This is a good thing as the Great Lakes need more protection and better environmental care from both sides of the border. The pact also implies a reversal of the destructive anti-science policies that the Canadian government has had this past year.

The updated Great Lakes Water Quality Agreement binds both nations to continue a cleanup and restoration initiative begun when the freshwater seas were a symbol of ecological decay. Many of their beaches were littered with foul algae blooms and dead fish. The Cuyahoga River, which flows into Lake Erie in Cleveland, was so choked with oil and chemicals that flames erupted on its surface in 1969.

The pact calls for further action on problems that inspired the original agreement three years after the embarrassing river fire and a second version in 1987. It pledges to “restore and maintain the chemical, physical and biological integrity” of the five lakes and the portion of the St. Lawrence River on the U.S.-Canadian border.

Read more here.

In the Future Cities will be Sharing Centres

Urban centres are already more efficient than their surrounding suburbs and this looks like it will continue for the foreseeable future. Due to the close proximity of people in cities it allows for local sharing projects that can greatly reduce waste awhile increasing access to things we think we need.

How can cities help save the future? Alex Steffen shows some cool neighborhood-based green projects that expand our access to things we want and need — while reducing the time we spend in cars.

A New Stove Project Looks to Crowdsource Healthier Heating

Regular readers of this site may know that we are fans of efficient stoves. The Kenya Stove is a new project to get efficient stoves in the hands of Kenyans. Erin, from Kenya Stove writes:

First some bad news: More than 3 billion people rely on traditional cookstoves for cooking in the developing world. Exposure to smoke from inefficient cookstoves and open-fire cooking practices contributes to the burden of pneumonia, chronic obstructive pulmonary disease, cardiovascular disease, and other diseases and results in an estimated two million deaths worldwide per year.

Now the good news: We plan to pilot a novel gasifying wood stove and fuel project in Kenya in the coming months. The stove emits little smoke, is durable and can be made at low cost with materials locally available in Kenya by Kenyan artisans thus creating jobs. Additionally we have selected mesquite, an invasive species in Kenya, to be used as the fuel source and therefore not impact indigenous forests through deforestation for wood fuel or charcoal-making. We anticipate our project will improve the health of families by reducing exposure to smoke, provide a lower cost fuel for cooking, and reduce the environmental impact caused by charcoal-making and the emissions from inefficient stoves.

Help fund their initiative here.

California High Speed Rail is Green

Trains are way more efficient than cars and trucks when it comes to transporting people and goods, yet in North America, trains are often shunned for more wasteful transportation systems. This negative attitude towards sustainability is changing, notably California citizens voted for a high speed rail line in the state.

Opponents to economic and environmental efficiencies argued that the high speed rail line would be too expensive to build. It turns out, rather unsurprisingly, that California’s new rail system is better for everybody!

While several competing proposals are on the table for what the system will look like once it’s completed, high-speed rail promises to be more environmentally friendly in several ways. Cars and planes, for example, run on fossil fuels, which emit greenhouse gases and other pollutants. The extraction and refining process also emits pollutants. High-speed trains, however, run on electricity, which produces no greenhouse gases at the point of use. Pollutants become an issue for high-speed rail at the power plants generating the electricity. The plants may burn fossil fuels. However, the study’s authors note that the number of renewable energy plants, which produce no greenhouse gases, will continue to grow in California as the high-speed rail system is built. Hydroelectric power produces the bulk of the electricity for the Swiss High-Speed Rail network.
…
The new study’s findings track closely with research commissioned in 2009 by seven of Europe’s leading high-speed rail systems. “Generally, what you tend to see around the rest of the world is a similar pattern where high-speed rail does have a lower environmental footprint than the automobile or aircraft,” Chester said.

Read more here.