Half of US Adults Exposed To Harmful Lead Levels As Kids – Slashdot

The scientists from Florida State University and Duke University also found that 90% of children born in the U.S. between 1950 and 1981 had blood-lead levels higher than the CDC threshold. And the researchers found significant impact on cognitive development: on average, early childhood exposure to lead resulted in a 2.6-point drop in IQ. The researchers only examined lead exposure caused by leaded gasoline, the dominant form of exposure from the 1940s to the late 1980s, according to data from the U.S. Geological Survey. Leaded gasoline for on-road vehicles was phased out starting in the 1970s, then finally banned in 1996. Source: Half of US Adults Exposed To Harmful Lead Levels As Kids – Slashdot

We’re all human: Scientists create world’s biggest family tree linking 27 million people – Study Finds

“We have basically built a huge family tree, a genealogy for all of humanity that models as exactly as we can the history that generated all the genetic variation we find in humans today. This genealogy allows us to see how every person’s genetic sequence relates to every other, along all the points of the genome,” says principal author Dr. Yan Wong in a university release.

The University of Oxford team combed through eight databases containing 3,609 different genome sequences from 215 populations. They included samples from across the world; some being over 100,000 years-old. The resulting network contained almost 27 million ancestors and 231 million ancestral lineages.

Source: We’re all human: Scientists create world’s biggest family tree linking 27 million people – Study Finds

Changing a System that Exploits Nature and Women, for a Sustainable Future | Inter Press Service

Peruvian farmer Hilda Roca, 37, stands in her agro-ecological garden in Cusipata, a town located at more than 3,300 meters above sea level in the highlands of Cuzco, where she grows vegetables for her family and sells the surplus with the support of her adolescent daughter and son. CREDIT: Mariela Jara/IPS “Pachamama (Mother Earth) is upset with all the damage we are doing to her,” says Hilda Roca, an indigenous Peruvian farmer from Cusipata, in the Andes highlands of the department of Cuzco, referring to climate change and the havoc it is wreaking on her life and her environment.

From her town, more than 3,300 meters above sea level, she told IPS that if women were in power equally with men, measures in favor of nature that would alleviate the climate chaos would have been approved long ago. “But we need to fight sexism so that we are not discriminated against and so our rights are respected,” said the Quechua-speaking farmer.

The link between climate change and gender is the focus of the United Nations’ celebration of this year’s International Women’s Day, Mar. 8, under the theme “Gender equality today for a sustainable tomorrow”.

The aim is to “make visible how the climate crisis is a problem that is closely related to inequality, and in particular to gender inequality, which is expressed in an unequal distribution of power, resources, wealth, work and time between women and men,” Ana Güezmes, director of the Gender Affairs Division of the Economic Commission for Latin America and the Caribbean (ECLAC), told IPS.

Source: Changing a System that Exploits Nature and Women, for a Sustainable Future | Inter Press Service

The Bloody Secret Behind Lab-Grown Meat – Mother Jones

The other big problem is optics: You can’t market your product as “slaughter-free,” let alone vegan, when you used a slaughterhouse byproduct to grow it. (Although Eat Just does just that with its Singapore chicken, which is made with a “very low level of bovine serum,” a spokesperson told Mother Jones.)

As a result, cultivated-meat companies are scrambling to find FSB substitutes. Such a “serum-free” growth medium exists, reports the Good Food Institute, a think tank that supports conventional-meat replacements. Trouble is, it currently costs nearly $400 per liter—still way too high to be commercially competitive.

Source: The Bloody Secret Behind Lab-Grown Meat – Mother Jones

Analysis: Texas campaigners know the problems, but don’t have real solutions | The Texas Tribune

Source: Analysis: Texas campaigners know the problems, but don’t have real solutions | The Texas Tribune