Cool U.S. readings the exception in a record-warm month
FRISCO — November’s cool temperatures across parts of North America were the exception, as the rest of globe reported all-time record warmth for the month. According to the National Climatic Data Center’s monthly update, the average global temperature was 1.40 degrees Fahrenheit above the 20th century average.
Many regions saw all-time record highs, including southern Russia, northwest Kazakhstan, south India, southern Madagascar, parts of the central and south Indian Ocean, and sections of the Pacific Ocean.
A large swath of states extending from Texas up to the Northeast reported below average temperatures for the month. Warmer than average temperatures were reported across the desert Southwest and in Florida.
Genetic adaptations may enable some species to persist in warmer oceans
By Summit Voice
FRISCO — Some coral reefs may be able to adapt to warming seas through genetic adaptation — but only if greenhouse gas emissions are reduced dramatically, according to scientists who took a hard look at the rate of coral bleaching.
The study projects that some corals could reduce the currently projected rate of temperature-induced bleaching by 20 to 80 percent of levels expected by the year 2100, giving hope that some corals can survive through the end of the century.
Cooler Pacific Ocean temps may drive tornado activity into southern U.S.
By Summit Voice
FRISCO — After studying more than 56,000 tornados, researchers at the University of Missouri say they’ve found a clear link between Pacific Ocean sea surface temperatures and the patterns of storms that spawn the violent twisters. The findings could help scientists predict the type and location of tornado activity in the U.S.
When surface sea temperatures were warmer than average, the U.S. experienced 20.3 percent more tornadoes that were rated EF-2 to EF-5 on the Enhanced Fuijta (EF) scale. (The EF scale rates the strength of tornados based on the damage they cause. The scale has six category rankings from zero to five.)
Ecosystem collapses could also have serious economic and social consequences
By Summit Voice
FRISCO — One of the biggest concerns raised by the rapid rise in global temperatures the past few decades is that some ecosystems may reach an environmental tipping point, from beyond which there is no recovery.
Climate experts outline weather extremes across the U.S.
By Bob Berwyn
After years of persistent drought across big swaths of contiguous 48 states, the weather picture changed dramatically in 2012. Instead of dealing with parched ground, farmers in the Southeast weren’t able to harvest crops this summer because of standing water in the fields.
Mold and fungal diseases were reported across the region, particularly on crops such as corn, tomatoes and peanuts. The excess moisture has degraded the quality and flavor of many crops, including watermelons, tobacco, and peaches. Flooded soil has hampered the growth of cotton and corn, with damage from excess moisture expected to cost billions, The National Climatic Data Center reported this week in its July update. Continue reading “Climate: From drought to deluge”→
The average land-surface temperature was even warmer. At 1.89 degrees above average, it was the third-warmest June on record over the world’s land areas. Record-setting warmth was reported from many locations in northern Canada, far northwestern Russia, southern Japan, the Philippines, part of southwestern China, and central southern Africa.