New studies from North Carolina State University suggest
that Native Americans from the Cherokee tribe during the Trail of Tears in the
1830’s experienced an interference with the normal growth of their skulls due to extreme
amounts of stress. Stress affects
cranial length, and this affect decreases the size of the skull. Data collected
of adults born between 1783 and 1874 shows a significant truncation of the
skull. The leader of the study, Ann H. Ross, says that this type of research
allows scientists to interpret the effects of historical events.
Tuesday, April 22, 2014
Wednesday, April 9, 2014
White House Unveils Plans to Cut Methane Emissions
President Obama and his administration have announced a new
plan in which methane emissions will be significantly reduced. This plan is
another part of what the White House plans to build to take action toward reducing
climate change problems. Methane in the
United States has been increasing in recent years mainly though hydraulic fracturing
and this gas can lead to more entrapment of infrared energy in Earth. The EPA and
the white house will work together on this plan by updating standards and
making them stricter. The EPA believes that these plans will be completed by 2016,
right before President Obama will leave office.
Thursday, April 3, 2014
Pollution and Dust in Britain Bring Health Warnings
In London, high levels of air pollution were reported in
parts of England, which made the government enact smog alerts and health warnings
for elderly and people with heart of lung problems. The French last month had
seen similar problems of air pollution and the government had responded by
imposing partial driving bans and offering free mass transit for several days.
Environmentalists have used these incidents to emphasize the problems of
pollution cannot be avoided, but rather fixed immediately.
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