Summer in the City Heat Tied to Dark Surfaces and Heat Islands
A Boston Globe summary notes US Energy Department findings that urban heat stems mainly from dark pavements, roofs, and dense city form. Replacing with light surfaces and planting trees could trim US electricity use by billions, cut cooling costs, and lower peak demand nationwide.
MENTIONED IN THIS ARTICLE
Sumier
US Energy Department
Nates
Heryeen Memorial
Enemgy Department
U.S
United States
Los Angeles
New York
Philadelphia
Washington
Cooler approaches to curb outdoor heat and roof energy use
DOE experts advocate lighter paving and roofing options to reduce heat. Portland concrete and lighter asphalt mixes lower surface temperatures. Titanium dioxide shingles reflect solar heat and may extend roof life. Trees enhance cooling through evapotranspiration, with deciduous shade in summer and evergreens on the north to cut heating bills.
MENTIONED IN THIS ARTICLE
DGE
DOE
Hashem Akbari
Sizzling in Syracuse shows urban heat island effects and road choices
Syracuse coverage notes MONY Building temperatures run 5 to 15 degrees hotter than airport readings due to radiational cooling and heat retention. Experts advise trees and lighter pavements to modestly lower heat. asphalt remains favored for roads for cost and durability, while cement concrete offers a lighter but pricier alternative.
MENTIONED IN THIS ARTICLE
MONY
Syracuse
Dave Longley
Longley
Frank Stanwick
New York State Department of Transportation
Stanwick
Mars Pathfinder rover Sojourner captures sunset postcard
On Sol 24 in July the Sojourner rover photographed a sunset on Mars. Officials say the 30 day mission is complete, but the craft remains capable of bonus trips such as a hill climb to explore beyond. Scientists plan long range weather and surface monitoring and potential further rover exploration near Pathfinder.
MENTIONED IN THIS ARTICLE
NASA
Mars Pathfinder
Sojourner
Mars
Pathfinder
Endangered Crocodiles Rise Amid Human Conflicts in Australia
Australian saltwater crocodiles, once hunted to near extinction, have rebounded to about 100,000, prompting new worries over increased human and livestock attacks. Officials debate partial hunts as aborigines maintain cultural ties to the species. 31 attacks since 1971 include 18 fatalities, with a notable death on a concrete causeway a decade ago.
MENTIONED IN THIS ARTICLE
Darwin
Australia
East Alligator River
Terry McLoughlin
Perseid meteor shower watch advised this week
Sky watch notes that clear conditions this week favor Perseid meteors with peak activity historically spanning the nights of the 11th and 12th. Moonlight may limit visibility, but observers are urged to stay up late through Sunday and Wednesday, enjoy a map-guided view, and record the “oohs and ahs” as meteors streak from Perseus.
MENTIONED IN THIS ARTICLE
Perseus
Also Mentioned on This Page
Peter J. Howe
Boston Globe
Isa
Atlanta
Chicago
Gansun Tie Kawienie
Berkeley National Laboratory
Eande
Thl
Gow
Eap
Bea
Himain
Department of Energy
Joseph J.romm
Romm
Stephen D. Cannerelli
Staif
Ridder Tribum
Karl Tumner
New York Times News Service
Sky Watch
The
Croninin Retrinmar
Hayden Planetarium
N.Y. Times News Se
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