Expect More Record-Breaking Heat in U.S., Scientists Warn

WEDNESDAY, Dec. 7, 2016 (HealthDay News) -- Americans will face many more record-breaking hot days later this century if greenhouse gases continue to be pumped into the atmosphere at current levels, a new U.S. study warns.

Scientists using computer modeling predict about 15 daily record-high temperatures for every record-low by about 2065 if no action is taken. That ratio could jump further if climate change-causing greenhouse gas emissions rise, the study from the National Center for Atmospheric Research (NCAR) predicts.

In comparison, the ratio of record-high temperatures to record-lows has averaged about two to one over the last decade, according to the study authors.

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Allergy Information

What Are Seasonal Allergies?

More than 67 million americans suffer from allergy symptoms, including hay fever. But, what is an allergy? What is an allergic reaction? What are common allergy symptoms? What allergy treatments are available?

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What is Pollen?

Pollen is one of the most common allergens in the United States. Pollen is an airborne allergen, which is picked up and carried by the wind. Various trees, grasses and weeds create pollen, which can cause hay fever, irritate your eyes and skin.

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