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Aerial view of the White House complex, including Pennsylvania Avenue (closed to traffic) in the foreground, the Executive Residence and North Portico (center), the East Wing (left), and the West Wing and the Oval Office at its southeast corner. The White House is the official residence and workplace of the president of the United States.
Looking down from the Hollywood Hills, with Griffith Observatory on the hill in the foreground, air pollution is visible in downtown Los Angeles on a late afternoon.. Air pollution is the introduction of chemicals, particulate matter, or biological materials into the atmosphere that cause harm or discomfort to humans or other living organisms, or damage ecosystems.
Air pollution can cause diseases, allergies, and even death; it can also cause harm to animals and crops and damage the natural environment (for example, climate change, ozone depletion or habitat degradation) or built environment (for example, acid rain). [2] Air pollution can occur naturally or be caused by human activities. [3]
Despite what many may assume, there are a handful Secret Service agents who have never set foot inside the White House — and some have reportedly been trained on its layout by visiting a White ...
There’s a whole city’s worth of stuff underneath the White House, complete with a lasting oxygen supply and midnight snacks for weeks.
The White House Situation Room now has enhanced security, new technology, mahogany finishes from Maryland and stonework from Virginia. A look inside the White House Situation Room's $50 million ...
This level was added during the 1948–1952 renovation, [1] [2] [3] and contains the air conditioning and water softening equipment. [4] [5] [6] The sub-basement and mezzanine also contain storage areas, the heating system, elevator machinery rooms, an incinerator, a medical clinic, a dentist's office, [6] the electrical control system, [1] a laundry room, [6] [1] [7] and flatware and dishware ...
Air pollution is the introduction of chemicals, particulate matter, or biological materials into the atmosphere that cause harm or discomfort to humans or other living organisms, or damage ecosystems. Health problems attributed to air pollution include premature death, cancer, organ failure, infections, behavioral changes, and other diseases.