3/14/2023 0 Comments Hows weather up here science![]() ![]() Scientists who study Earth’s climate look at the factors that affect our planet as a whole. And, these amounts are different for different planets. Overall, global climate depends on the amount of energy received by the sun and the amount of energy that is trapped in the system. Global climate is a description of the climate of a planet as a whole, with all the regional differences averaged. ![]() But, we can also describe the climate of an entire planet-referred to as the global climate. ![]() Like the United States, different regions of the world have varying climates. Are regional climates different from the global climate? And, as the Nation’s official archive for environmental data, it’s our job to collect, quality control, and organize these data and make them available online for scientists, decision makers, and you. With these long-term records, we can detect patterns and trends. In many locations around the United States, systematic weather records have been kept for over 140 years. Over time, these weather observations allow us to quantify long-term average conditions, which provide insight into an area’s climate. Some observations are made hourly, others just once a day. How do weather observations become climate data?Īcross the globe, observers and automated stations measure weather conditions at thousands of locations every day of the year. Climate tells you what types of clothes to have in your closet. But, while descriptions of an area’s climate provide a sense of what to expect, they don't provide any specific details about what the weather will be on any given day. They can also tell us when we might expect the warmest day of the year or the coldest day of the year at that location. Looking at Climate Normals can help us describe whether the summers are hot and humid and whether the winters are cold and snowy at a particular place. And, we refer to these three-decade averages of weather observations as Climate Normals. In some instances, they might look at these averages over 30 years. When scientists talk about climate, they're often looking at averages of precipitation, temperature, humidity, sunshine, wind, and other measures of weather that occur over a long period in a particular place. To describe the climate of a place, we might say what the temperatures are like during different seasons, how windy it usually is, or how much rain or snow typically falls. Different regions can have different climates. Whereas weather refers to short-term changes in the atmosphere, climate describes what the weather is like over a long period of time in a specific area. Together, they determine what the weather is like at a given time and location. And, there are many different factors that can change the atmosphere in a certain area like air pressure, temperature, humidity, wind speed and direction, and lots of other things. Most weather happens in the part of Earth’s atmosphere that is closest to the ground-called the troposphere. ![]() Weather is different in different parts of the world and changes over minutes, hours, days, and weeks. Even though there’s only one atmosphere on Earth, the weather isn’t the same all around the world. More specifically, weather is the mix of events that happen each day in our atmosphere. Is it normal or typical? Is it what you’d expect? If it’s been cool the past few days but the temperature is climbing today, is that weather or climate? Are weather and climate the same thing? Though they are closely related, weather and climate aren’t the same thing. Everyone must take climate action, but people and countries creating more of the problem have a greater responsibility to act first.Take a moment and think about the weather today where you are. The 10 countries with the largest emissions contribute 68 per cent. The 100 least-emitting countries generate 3 per cent of total emissions. The emissions that cause climate change come from every part of the world and affect everyone, but some countries produce much more than others. Yet policies currently in place point to a 2.8☌ temperature rise by the end of the century. In a series of UN reports, thousands of scientists and government reviewers agreed that limiting global temperature rise to no more than 1.5☌ would help us avoid the worst climate impacts and maintain a livable climate. In the future, the number of “climate refugees” is expected to rise. Conditions like sea-level rise and saltwater intrusion have advanced to the point where whole communities have had to relocate, and protracted droughts are putting people at risk of famine. Some of us are already more vulnerable to climate impacts, such as people living in small island nations and other developing countries. People are experiencing climate change in diverse waysĬlimate change can affect our health, ability to grow food, housing, safety and work. ![]()
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