Latest Blogs

12 hours 6 min ago

(3BL Media/Just Means) - Carbon fiber is busy these days. This super strong composite material can be found in helmets, cycling gear, staplers, etc. Even the nautical industry is using it in propellers.

22 hours 13 min ago

(3BL Media/Justmeans) – Water shortage is no longer a crisis confined only to the developing regions of the world. Half of the world’s wetlands have already vanished due to unsustainable economic development. The quality of water around the world is increasingly deteriorating, posing a threat to human health as well as ecosystems. Nearly 780 million people worldwide still lack access to clean water and thousands die every day for lack of it.

1 day 22 hours ago

(3BL Media/Justmeans) - One date earmarked for our diaries was set in October 2011 by the United Nations, which declared October 11 as the International Day of the Girl Child to help raise awareness about all issues concerning gender inequality around the world.

1 day 22 hours ago

(3BL Media/Justmeans) - What’s been happening in Syria has been high-level news for some time. It’s estimated that almost three million people have fled across Syria's borders to escape the gory civil war that has engulfed the nation. The daily flow of men, women and children has become one of the largest forced migrations since World War II.

4 days 22 hours ago

A recent article in The Economist describes a blog post by Charles Frank of the Brookings Institute in which he questions the  methods that have been used to compare renewable energy sources with more traditional sources like coal, gas and nuclear.

Drawing on the work of Paul Joskow of MIT, Frank claims that the generally accepted levelized cost models, which essentially divide the total lifetime system cost by the total amount of electricity produced, do not adequately discount the value of renewables sources like solar and wind based on their intermittent nature. Joskow’s reasoning is that since these intermittent sources vary their output at different times of the day and the year, that should be reflected in their value, since the demand for, and the price of electricity also varies throughout the day, at least in the commercial market.

So, given that wind, for example, produces electricity mostly at night, when the power is less valuable, that should be reflected in the value of a wind investment. Solar, on the other hand produces mostly at mid-day, when the power is most valuable, so it may be getting short-changed by the levelized cost approach.

Frank started with Joskow’s premise, then went on to perform a detailed analysis of various energy sources, based on avoided emissions and avoided costs, which revealed, he says, that contrary to popular belief, solar and wind are the least cost-effective way of producing low carbon electricity, followed by hydro, nuclear, and finally at the top of the list is combined cycle gas turbine power. Written from the perspective of building new electric generation capacity, Frank concludes, “Assuming that reductions in carbon dioxide emissions are valued at $50 per metric ton and the price of natural gas is not much greater than $16 per million Btu, the net benefits of new nuclear, hydro, and natural gas combined cycle plants far outweigh the net benefits of new wind or solar plants.”

The problem with an analysis like this is, given the rapidity with which renewable energy costs are dropping, trying to compare them with traditional sources is akin to trying to catch a falling knife. Frank’s data was obsolete by the time the ink dried on the page.

In addition, the analysis is highly sensitive to the eventual market price for carbon, which could swing the results dramatically. Also not considered is the impact of energy storage which could easily neutralize the liabilities that form the basis for Frank’s thesis.

5 days 19 hours ago

(3BL Media/Just Means) - ​Clear labeling is an important tool for consumer education on the content of their purchases. As public demand for socially responsible and ecological credibility grows, communicating those aspects of a product is a must.

1 week 19 hours ago

(3BL Media/Just Means) - ​Last year I had the privilege to see the release of tens of baby turtles to sea. The regular event, held by Brazil sea turtle NGO Projeto Tamar, took place in Itaúnas in the southeast of the country, a popular destination for eco-tourists.

1 week 1 day ago

(3BL Media/Justmeans) - Over the years, alcohol and drug-related problems have continued to grow in China. If the current trend continues, these addictions could have a major impact on this vast nation.