From Wikipedia, the free encyclopedia. Climate ethics is an area of research that focuses on the ethical dimensions of climate change (also known as global warming), and concepts such as climate justice.
After you do a vigorous or long workout, your blood and muscle glucose will be much lower than before you started. Low glucose stores signal the body to burn fat preferentially. So after hard exercise that uses a lot of glucose, the body switches to burning fat. That's why all energy expenditure is important, not just fat burning during exercise.
As you become more physically fit, you will be able to work out at a higher intensity or for a longer period of time. The time it takes to burn fat during your cardio workout will depend on how quickly you reach your target heart rate. For sedentary people, this could mean as little as five minutes into the workout, while more physically fit individuals may not begin the fat-oxidation process until later in the workout.