Extreme heat can raise the danger of heat-related illnesses and threaten health in a more subtle way—by amplifying the side effects of many common medications.
Jul 12, 2024
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Authorities are testing after reports surfaced of toxic blue-green algae blooms at two Lake Tahoe beaches.
Jul 9, 2024
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Summer is a season of outdoor gatherings, barbecues and picnics, where food is often at the center of the festivities. However, the warm weather also creates ideal conditions for the growth of harmful bacteria, increasing ...
Jul 5, 2024
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Are heat waves more deadly for women? This question initiated a study now published in "Significance Magazine" analyzing how extreme temperatures affect mortality differently for men and women, focusing on India.
Jun 27, 2024
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Californians are staring down an unusually long and dangerous heat wave. Public health officials are opening cooling centers and urging caution as folks head out to celebrate the Fourth of July in what the National Weather ...
Jul 4, 2024
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The heat is on, especially across the South, Southeast and portions of the plains. The National Weather Service has issued several heat and excessive heat advisories. When summer goes from warm to hot, exercising could become ...
Jul 1, 2024
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Road trips are a summer tradition for many families, but some drivers are so focused on reaching their destination that they tend to ignore their bodies' need for sleep. However, Baylor College of Medicine's Dr. Philip Alapat ...
Jul 1, 2024
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For the first time, researchers have developed a validated tool that lets athletes predict their rate of whole-body sweat loss. The tool consists of precise equations that help people regulate the amount of fluids they drink ...
Jul 11, 2024
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For kids, summer can revolve around playgrounds, pools, bikes and just being outside. For parents, it can mean a litany of ouchies to take care of—including scrapes, sunburns and dehydration, pediatricians say.
Jul 2, 2024
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A state board recently voted unanimously to create long-awaited indoor heat standards for California workers. After a final legal review, that will mean protections for millions of people with jobs in warehouses, kitchens ...
Jul 11, 2024
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Weather is a set of all the phenomena occurring in a given atmosphere at a given time. Weather phenomena lie in the troposphere. Weather refers, generally, to day-to-day temperature and precipitation activity, whereas climate is the term for the average atmospheric conditions over longer periods of time. When used without qualification, "weather" is understood to be the weather of Earth.
Weather occurs due to density (temperature and moisture) differences between one place and another. These differences can occur due to the sun angle at any particular spot, which varies by latitude from the tropics. The strong temperature contrast between polar and tropical air gives rise to the jet stream. Weather systems in the mid-latitudes, such as extratropical cyclones, are caused by instabilities of the jet stream flow. Because the Earth's axis is tilted relative to its orbital plane, sunlight is incident at different angles at different times of the year. On Earth's surface, temperatures usually range ±40 °C (100 °F to −40 °F) annually. Over thousands to hundreds of thousands of years, changes in Earth's orbit affect the amount and distribution of solar energy received by the Earth and influence long-term climate
Surface temperature differences in turn cause pressure differences. Higher altitudes are cooler than lower altitudes due to differences in compressional heating. Weather forecasting is the application of science and technology to predict the state of the atmosphere for a future time and a given location. The atmosphere is a chaotic system, so small changes to one part of the system can grow to have large effects on the system as a whole. Human attempts to control the weather have occurred throughout human history, and there is evidence that human activity such as agriculture and industry has inadvertently modified weather patterns.
Studying how the weather works on other planets has been helpful in understanding how weather works on Earth. A famous landmark in the Solar System, Jupiter's Great Red Spot, is an anticyclonic storm known to have existed for at least 300 years. However, weather is not limited to planetary bodies. A star's corona is constantly being lost to space, creating what is essentially a very thin atmosphere throughout the Solar System. The movement of mass ejected from the Sun is known as the solar wind.
This text uses material from Wikipedia, licensed under CC BY-SA
