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"We found that fitness level had the strongest association with physical activity, followed by gender and season. This means that fit older adults were more active than the unfit, females were more active than males and physical activity was higher in the warmer months of the year. In addition we found that higher education was associated with higher physical activity for males, but not for females. Among other interesting results, we found that the social environmental correlates, such as social support and living situation, were not associated with physical activity among the elderly", says the two first authors of the study, Hallgeir Viken and Nils Petter Aspvik, PhD candidates at NTNU.

In the study newly published in the Journal of Aging and Physical Activity, researchers from the K.G. Jebsen Center for Exercise in Medicine - Cardiac Exercise Research Group (CERG) and the Department of Sociology and Political Science at the Norwegian University of Science and Technology (NTNU) Norway have examined how background factors (correlates) are associated with overall physical activity among older adults.

Big hopes are riding on the 2015 United Nations climate change conference planned for Nov. 30-Dec. 11 in Paris, where more than 190 nations will strive to hammer out an international agreement aimed at lowering global temperatures through significant reductions in human-made greenhouse gas (GHG) emissions. But the meeting, known as COP21, or the 21st Session of the Conference of the Parties to the UN Framework Convention on Climate Change (UNFCCC), is also attracting a fair amount of skepticism.

For good reason: More than two decades of UN climate summit meetings have yielded limited results. The Kyoto Protocol of 1997 established GHG emissions reduction commitments for a small number of industrialized countries from 2008 to 2012, but was not ratified by the U.S. because it made no demands on developing countries. Overcoming this hurdle, the Copenhagen meeting in 2009 produced voluntary pledges from both developed and developing countries through the year 2020 that promised little headway in keeping global temperatures below the 2 degree Celsius threshold identified by the UNFCCC as necessary to avoid the most serious impacts of climate change.

The first aptly-titled SolaRoad made its debut last November in the Netherlands, not far from Amsterdam. The road itself is a unique foray in pollution-free solar energy. Nearly one year later, the SolaRoad’s designers say the high-tech bike path is performing better than they expected.

In the first six months since it was installed, the SolaRoad has generated over 3,000 kilowatt-hours — or roughly the equivalent required for a single-person household for one calendar year.

Thousands of creative recycling events are being planned for America Recycles Day (ARD), a Keep America Beautiful initiative, which takes place on and in the weeks leading up to Nov. 15.

America Recycles Day is the only nationally recognized day dedicated to promoting and celebrating recycling in the United States. In its 18th year, ARD educates people about the importance of recycling to our economy and environmental well-being, and helps to motivate occasional recyclers to become everyday recyclers.

A number of ARD special events are focusing on this year’s theme of “Bathrooms, Bags & Gadgets." They include:

Is it a coincidence that the terrorist outrage in Paris was committed weeks before COP21, the biggest climate conference since 2009? Perhaps, writes Oliver Tickell. But failure to reach a strong climate agreement now looks more probable. And that's an outcome that would suit ISIS - which makes $500m a year from oil sales - together with other oil producers.

Yes, it's still about the climate, very much so. But there are also compelling reasons of national and global security to reduce the world's dependence on fossil fuels, oil in particular.

The first thing to be said about the terrorist attacks on Paris yesterday is that they are a dreadful crime that deserves only the most fervent condemnation.