Während sich Meeresluftmassen, die mit Tiefausläufern nach
Mitteleuropa gelangen, mäßigend auf unser Temperaturregime auswirken,
treten die Extremtemperaturen auf der Erde stets in wetterberuhigten
Arealen auf. Dazu zählen die Wüsten, die man vor allem im Bereich der
subtropischen Hochdruckgürtel in geografischen Breiten um 25 Grad
Nord und Süd findet, sowie, zumindest in der Trockenzeit, auch die
Sahelzone in Afrika. (more…)
UCLA-led study shows that many countries have it, but not the U.S.
Uruguay has it. So does Latvia, and Senegal. In fact, more than half of the world’s countries have some degree of a guaranteed, specific right to public health and medical care for their citizens written into their national constitutions.
The United States is one of 86 countries whose constitutions do not guarantee their citizens any kind of health protection. That’s the finding of a new study from the UCLA Fielding School of Public Health that examined the level and scope of constitutional protection of specific rights to public health and medical care, as well as the broad right to health. (more…)
COLUMBUS, Ohio — Although use of the internet has been credited with helping spur democratic revolutions in the Arab world and elsewhere, a new multinational study suggests the internet is most likely to play a role only in specific situations.
Researchers at Ohio State University found that the internet spurs pro-democratic attitudes most in countries that already have introduced some reforms in that direction. (more…)
Changes in ocean chemistry due to increased carbon dioxide (CO2) emissions are expected to damage shellfish populations around the world, but some nations will feel the impacts much sooner and more intensely than others, according to a study by scientists at Woods Hole Oceanographic Institution (WHOI).
As CO2 levels driven by fossil fuel use have increased in the atmosphere since the Industrial Revolution, so has the amount of CO2 absorbed by the world’s oceans, leading to changes in the chemical make-up of seawater. Known as ocean acidification, this decrease in pH creates a corrosive environment for some marine organisms such as corals, marine plankton, and shellfish that build carbonate shells or skeletons. (more…)
*Microsoft CEO Steve Ballmer, economist Jeffrey Sachs, and Foursquare founder and CEO Dennis Crowley opened the Imagine Cup 2011 World Finals on Friday night. The competition heated up over the weekend with the first set of finalists being announced Sunday night.*
NEW YORK CITY – Microsoft CEO Steve Ballmer inspired them to be great, economist Jeffrey Sachs gave them the homework assignment of saving the world, and Foursquare founder and CEO Dennis Crowley showed them how tangibly close they are to success.
Students representing 70 countries and regions descended on New York City over the weekend to participate in the Imagine Cup 2011 Worldwide Finals, which challenges students from across the globe to use technology to solve world problems like feeding the hungry, fighting disease, and creating new forms of energy. Finalists in the competition’s nine categories were announced on Sunday and the overall winners will be announced on Wednesday. (more…)
