Aircrafts' Vapor Trails Trap Heat
The innocuous white vapour trails that criss-cross the sky might have contributed to more global warming so far than all aircraft greenhouse gas emissions put together.
Aircrafts' contrails function similarly to clouds by spreading out and trapping heat in the atmosphere. "High-altitude clouds like cirrus warm the planet by trapping heat. Contrail 'cirrus' does the same thing, but the question is: how much? We know that contrails trap some extra energy in the atmosphere: their radiative forcing trapped 10 milliwatts per square metre (mW/m2) in 2005, according to an estimate by the Intergovernmental Panel on Climate Change. That compares with 28 mW/m2 trapped by all of the CO2 released by aircraft engines since the start of aviation."
The famed author headed to the pond thanks to Indian philosophy.
- The famed author was heavily influenced by Indian literature, informing his decision to self-exile on Walden Pond.
- He was introduced to these texts by his good friend's father, William Emerson.
- Yoga philosophy was in America a century before any physical practices were introduced.
Pfizer's partnerships strengthen their ability to deliver vaccines in developing countries.
- Community healthcare workers face many challenges in their work, including often traveling far distances to see their clients
- Pfizer is helping to drive the UN's sustainable development goals through partnerships.
- Pfizer partnered with AMP and the World Health Organization to develop a training program for healthcare workers.
A little goes a long way.
- A recent study from the Department of Health and Human Services found that 80 percent of Americans don't exercise enough.
- Small breaks from work add up, causing experts to recommend short doses of movement rather than waiting to do longer workouts.
- Rethinking what exercise is can help you frame how you move throughout your day.
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