Some initial change causes a secondary change that reduces the effect of the initial change. A feedback that increases an initial warming is called a "positive feedback." This lesson does an effective job of presenting positive and negative feedback loops and how negative feedback loops create a relatively stable climate system. The view of the climate system depicted in the adjacent figure is one of stability — energy flows in and out, in perfect balance, so the temperature of the earth should stay the same. Positive feedback (or exacerbating feedback) is a process that occurs in a feedback loop which exacerbates the effects of a small disturbance. Generally, there are two types of feedback loops, one is positive (or destabilising) and one is negative (or stabilising) (see fig.1). Negative climate feedback is any process where climate feedback decreases the severity of some initial change. The answer is straightforward. Clouds have an enormous impact on Earth's climate, reflecting about one-third of the total amount of sunlight that hits the Earth's atmosphere back into space. Positive (amplifying) feedback loops increase the net temperature change from a given forcing, while negative (damping) feedbacks offset some of the temperature change associated with a climate forcing. So once you begin taking climate out of its balance, these positive and negative feedback loops start to kick in. There are many good examples of feedback mechanisms, but here are a few to illustrate the idea. A feedback that reduces an initial warming is a "negative feedback." The material it … Although water vapor is a greenhouse gas, it has very little effect on the external factors controlling the climate, unless “pushed” from within. Climate Feedback. The melting of Arctic sea ice is an example of a positive feedback loop. An important example is the water vapor feedback loop. The Bad Kind of Positive Feedback: Climate Change July 8, 2010 Posted by Jamie Friedland in Climate Change. There are many climate feedback mechanisms in the climate system that can either amplify (‘positive feedback’) or diminish (‘negative feedback’) the effects of a change in climate forcing. Positive climate feedback is a process that is one type of climate feedback wherein some initial change in the climate causes some secondary change that in turn increases the effects of the initial change, essentially magnifying the initial effect. This feedback keeps the climate system stable. For example, as rising concentrations of greenhouse gases warm Earth’s climate, snow and ice … POSITIVE FEEDBACK LOOP: In a positive feedback loop, an initial warming triggers a feedback to amplify the effects warming. Some results of global warming contribute to global warming, is is called a positive feedback loop. The thing about climate change is, the worse it gets – the worse it gets. positive feedback loops will accelerate a response, making the climate much warmer or colder. That is, A produces more of B which in turn produces more of A. Positive climate feedbacks are often discussed in the context of climate change and is one sub-type of positive feedback. It is generally discussed in the context of climate change and is one particular type of negative feedback. Clouds. For example, warm water can absorb less carbon dioxide than cold water. The widespread release of methane in the Arctic accelerates the rate of global climate change. Scientists are aware of a number of positive feedbacks loops in the climate system. Positive (amplifying) feedback loops increase the net temperature change from a given forcing, while negative (damping) feedbacks offset some of the temperature change associated with a climate forcing.