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Weather is the mix of events that happen each day in our atmosphere. Weather is different in different parts of the world and changes over minutes, hours, days and weeks. Most weather happens in the troposphere, the part of Earth’s atmosphere that is closest to the ground.
Weather is made up of six main components. These are temperature, atmospheric pressure, cloud formation, wind, humidity and rain. A small change to any of these conditions can create a different weather pattern. Every weather pattern has a knock-on effect, creating a ripple effect around the world. That’s why weather can sometimes seem chaotic.
The term “ weather ” refers to the temporary conditions of the atmosphere, the layer of air that surrounds the Earth. We usually think of weather in terms of the state of the atmosphere in our own part of the world. But weather works like dropping a pebble in water—the ripples eventually affect water far away from where the pebble was dropped.
Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. On Earth, most weather phenomena occur in the lowest layer of the planet's atmosphere, the troposphere, just below the stratosphere.
Weather is defined by factors such as temperature, rain, and wind. Changes in weather are caused by the movement of air masses. An air mass is a large body of air with uniform temperature and humidity. In general, air masses move from areas of high pressure to areas of low pressure. As air masses move, they collide and form weather fronts.
A Global Look at Moving Air: Atmospheric Circulation. Air moves around the planet in a consistent pattern, called atmospheric circulation. Learn how convection and the spinning of the Earth create the prevailing winds.
Mar 9, 2016 · 1. Weather. 2. Climate. 3. Climate Change and Global Warming. How is weather different from climate? Weather and climate describe the same thing—the state of the atmosphere—but at different time scales. How does weather data become climate data? Climate patterns emerge from long-term weather data.
Oct 19, 2023 · The atmospheric conditions that influence weather are always fluctuating, which is why the weather is always changing. Meteorologists analyze data from satellites, weather stations, and buoys to predict weather conditions over the upcoming days or weeks. These forecasts are important because weather influences many
The Causes of Climate Change. Human activities are driving the global warming trend observed since the mid-20th century. En español. Takeaways. The greenhouse effect is essential to life on Earth, but human-made emissions in the atmosphere are trapping and slowing heat loss to space.
Jul 10, 2024 · This article provides an overview of the scientific background related to the subject of global warming. It considers the causes of rising near-surface air temperatures, the influencing factors, the process of climate research and forecasting, and the possible ecological and social impacts of rising temperatures.
