Some human activities increase the greenhouse gases in the atmosphere: When humans burn fossil fuels, the natural concentration of CO2 changes. This is known as the greenhouse effect. Class presentation which provides a concise introduction to Climate Change and Global Warming. But some commentators are unconvinced that rising greenhouse gas emissions are the cause of … Natural causes; Volcanic activity Volcanic activity can reduce global temperatures because of the dust and ash that goes into the atmosphere and sulphur dioxide that creates aerosols. or variations in the tilt and/or orbit of the Earth around the Sun (Wobble, roll and stretch theory). Causes of climate change A natural function of the Earth's atmosphere is to keep in some of the heat that is lost from the Earth. The Earth's surface then gives off heat (long-wave radiation). An Intergovernmental Panel on Climate Change (IPCC) report in 2018 suggested that keeping to the 1.5C target would require "rapid, far-reaching and unprecedented changes in all aspects of society". It was received really well by the students. … A natural function of the Earth's atmosphere is to keep in some of the heat that is lost from the Earth. Some are natural, such as the change of the seasons, annual animal migrations or the circadian rhythms that govern our sleep patterns. Others are human-produced, like growing and harvesting crops, musical rhythms or economic cycles. Climate is the average weather conditions in a place over a long period of time (30 years or more). (eg methane, carbon dioxide and nitrous oxide), which radiate the heat back towards Earth. To learn about climate change, you first must know what climate is. - when the waste decomposes it produces methane. or variations in the tilt and/or orbit of the Earth around the Sun (Wobble, roll and stretch theory). IN THE NEWS Mayor quashes £25 C-charge hike. Global warming will cause further changes that are likely to create further heating. If they are cut down, there will be higher amounts of carbon dioxide in the atmosphere. Causes of climate change - human and natural factors A natural function of the Earth's atmosphere is to keep in some of the heat that is lost from the Earth. Climate change is a global problem – if it is not tackled everywhere, it will affect everyone. Climate change is one of the biggest issues affecting the world today. The ozone layer, which lies high up in the atmosphere, shields us from harmful ultraviolet (UV) rays that come from the Sun. Climate change is one of the biggest issues affecting the world today. Trees help to regulate the climate by absorbing CO2 from the atmosphere. Here he is with a quick Bitesize lesson on climate change. Yes and no. Cycles also play key roles in Earth’s short-term weather and long-term climate. Greta Thunberg is the Swedish teenager who skipped school and inspired an international movement to fight climate change. What causes climate change? So when they are cut down, that beneficial effect is lost and the carbon stored in the trees is released into the atmosphere, adding to the greenhouse effect. During a period known as the ‘. Climate change can cause new patterns of pests and diseases to emerge, affecting plants, animals and humans, and posing new risks for food security, food safety and human health. Another group of greenhouse gases includes the chlorofluorocarbons (CFCs). Here’s your handy guide to the most effective strategies. In other parts of the world, glaciers advanced and plants were destroyed by the freezing conditions. 1. These changes can affect one region, many regions or the whole planet.Allison, Ian. Volcanic eruptions produce ash and sulphur dioxide gas. When they remain for an extended period in the atmosphere, they are likely to cause climate change. The eruption theory The eruption theory occurs when a large volcanic eruption occurs and the ash thickens the stratosphere and prevents some sunlight from reaching the Earth's surface as the ash reflects the sunlight back into space. The first element, on the science of climate change, released in February, concluded it was at least 90% likely that human activities are principally responsible for the warming observed since 1950. 2. Any factor that causes a sustained change to the amount of incoming energy or the amount of outgoing energy can lead to climate change. The lesson aim was to get the students to understand the greenhouse effect, and for them to make link to how humans are effecting it. Examples include shifts in wind patterns, the average temperature or the amount of precipitation. This lesson aims to get students to think about the human causes behind climate change. If they are cut down, there will be higher amounts of carbon dioxide in the atmosphere. A frozen River Thames due to volcanic activity, Home Economics: Food and Nutrition (CCEA). Wildlife biologist Dr Jedediah Brodie of the University of Montana, in Missoula, US, wondered how climate change might be having an impact on snowpack levels, and on the animals that depend on it. , eg coal, gas and oil - these release carbon dioxide into the atmosphere. Small eruptions have no effect – the eruption needs to be very large and explosive. (eg methane, carbon dioxide and nitrous oxide), which radiate the heat back towards Earth. To learn about climate change, you first must know what climate is. The ozone layer, which lies high up in the atmosphere, shields us from harmful ultraviolet (UV) rays that come from the Sun. In this GCSE Geography video, Dan examines the causes of climate change and the potential consequences. When humans burn fossil fuels, the natural concentration of CO. changes. 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