What's the problem?
Why should I care?
What can I do?
is light striking your eye directly from the source. A veil of light
across your field of view reduces the contrast between objects--you can't
see as well in the stark brightness.
motorist and pedestrian safety, drivers need to discern objects at
night. The two
critical road signs at this intersection (left)
are difficult to see because the eyes are overwhelmed by direct light,
creating a hazard. Glare hinders
true security by creating extreme shadows, offering refuge to criminals in
spite of the bright lights. Glare can be discomforting, disabling, or
blinding. As we age, the effect--and its impact on our lives at
adjustable lights downward so they are level with the horizon. Purchase
dark-sky friendly fixtures that have the light bulb tucked into the
luminaire housing, not exposed to the eye. Install only light
fixtures that are fully shielded. Install
security lights with motion detectors for greater security. With
lighted signs, request lighter text and logos/graphics against a dark,
is light that extends beyond the targeted object. This includes
light trespass, which extends beyond property lines.
that is broadcast well beyond the intended area is wasted--an unnecessary
loss of money. Light that encroaches upon the property of others,
such as into bedroom windows, is
a personal infringement. Neighbors are entitled not to have your bright
lights shining into their personal space. Roadway light that spills
into adjacent properties represents a waste of tax dollars.
floodlights with clip-on visors and aim the fixtures downward. Install fully
shielded lights, and do not place
light mounts where the light crosses
property lines. Save money by lessening the light
output (in lumens) of existing fixtures.
glow is the garish hue seen overhead from artificial light
scattering in the atmosphere. The reflected light masks the
background stars and creates a pallid-looking sky.
could readily save the tax dollars spent on
lighting the clouds. Light sent skyward is a waste of that light
(<2% of the cost) plus the additional energy loss (~98% of the cost)
that went into producing the light pollution. Our children are
losing the heritage of the night sky. Most
of them are unable to see the Milky Way galaxy or other dark sky
wonders. Nocturnal animals are disrupted by the abnormal night
lighting. Some studies suggest human health is negatively affected
because of disrupted circadian rhythms due to light pollution.
|| Install simple visors over existing lights
and and purchase fully shielded fixtures. Find a less offensive way
to express yourself than through outdoor vanity lights (right) and
landscape lighting. Ask your elected officials to
select public lighting fixtures that don't waste your tax dollars
skyward. Help reclaim the vast public space overhead. Aim
billboard lights down instead of up.