El Nino not climate change driving southern Africa drought: Study
A drought that pushed millions of people into hunger across southern Africa has been driven mostly by the El Niño weather pattern—not climate change, scientists said on Thursday.
A drought that pushed millions of people into hunger across southern Africa has been driven mostly by the El Niño weather pattern—not climate change, scientists said on Thursday.
Earth Sciences
Apr 18, 2024
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With cloud seeding, it may rain, but it doesn't really pour or flood—at least nothing like what drenched the United Arab Emirates and paralyzed Dubai, meteorologists said.
Environment
Apr 18, 2024
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Dubai's giant highways were clogged by flooding and its major airport was in chaos as the Middle East financial center remained gridlocked on Wednesday, a day after the heaviest rains on record.
Environment
Apr 17, 2024
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In a pandemic, bushfire or flood, people need high quality safety and crisis information. Getting emergency messages quickly can help people know how to prepare, what rules to follow, where dangers are, where to gather safely ...
Social Sciences
Apr 15, 2024
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In a study published in Science Advances, scientists have used new lithium isotope (δ7Li) data to show that continental clay export promoted organic carbon burial and thus atmospheric oxygenation during the Cambrian period.
Environment
Apr 15, 2024
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Australia's weather bureau copped harsh criticism after El Niño failed to deliver a much-vaunted dry summer in eastern Australia. Parts of northern Queensland in the path of Tropical Cyclone Jasper had a record wet December ...
Earth Sciences
Apr 12, 2024
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A study by the University of Southampton has found that market forces have provided good food price stability over the past half century, despite extreme weather conditions.
Economics & Business
Apr 11, 2024
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Species living in 17 mountains around the world are facing the risk of extinction due to the rapid rate of warming attributed to climate change. However, the establishment of additional meteorological monitoring stations ...
Environment
Apr 9, 2024
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Whether you saw the moon completely block the sun, were foiled by cloudy weather or weren't along the path of Monday's total solar eclipse, there are still more chances to catch a glimpse.
Space Exploration
Apr 9, 2024
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"March winds and April showers bring forth May flowers", goes the old British proverb. The term was even (almost) used in the Geoffrey Chaucer's Canterbury Tales in the 1300s: "Whan that Aprill with his shoures soote".
Earth Sciences
Apr 8, 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