After watching Ylvis-The Fox (What Does the Fox Say?), I wanted to ask a real fox what it said. Here's me playing The Fox to a Fox and asking it what it thinks about the song.
Heat-trapping gases, sometimes called âgreenhouse gases,â are the cause of most of the climate warming and glacier retreat in the past 50 years. However, related causes, such as increased dust and soot from grazing, farming, and burning of fossil fuels and forests, are also causing glacier retreat.
However, human activities often affect ecosystems in negative ways because human systems are not closed loop systems [closed-loop system: A system in which feedback from the output is 'fed back' into the system to modify the way it works.] . Human waste enters other natural ecosystems, where it can cause them to become unbalanced. 1  Sometimes this waste can build up to harmful levels. Examples of human waste that can affect ecosystems are: 2  household waste. 3  industrial waste. 4  agricultural waste. 5  gases produced when fossil fuels are burned.