I suppose this article grabbed your attention because you're looking to lose some extra weight. If you're an average American, you're 71.6% likely to be overweight or obese, and physical exercise is a great way to start the journey to lose excess weight and have a better lifestyle. With that being said, a change from an inactive and unhealthy lifestyle will have much more effect on fat loss than tweaking your workout and continuing to be sedentary and practicing poor eating habits. With that in mind, here are certain ways to burn more fat during your workout.
First: Choose a workout that you will do again. And again, and again. Then keep doing it. The single most important factor for exercise-induced fat loss is consistency. Your body is not going to make the necessary adaptations for weight loss if you are not exercising consistently. Once you have a regular exercise routine doing something you enjoy (or at least are motivated enough to tolerate), then start exploring other modes of exercise to incorporate into your workout schedule. For overall health, a balance of resistance training, cardiovascular exercise, and power workouts are all crucial, but when getting started, consistent efforts are more important than anything else.
Second: Up the intensity. Whatever exercise you're doing, whether it is about of cardio, weightlifting, yoga, whatever it may be, level up. Run at a faster pace, lift heavier weights, or hold a more complex pose. A good indicator of increasing intensity is increasing your respiratory rate, or how quickly you're breathing. If you can hold a conversation while exercising, that's a low-intensity workout. Don't worry about the "fat burning zone" that's advertised on the treadmill at the gym. That will lead you to exercise at a lower intensity DOES NOT BURN MORE FAT. Let me say that again. Working at a lower intensity (or "Fat Burning Zone" on your treadmill/elliptical) does not burn more fat. Let's break down the marketing scheme, shall we?
Third: Your body uses two main sources for fuel, fat, and carbohydrates. Carbohydrates are broken down quickly and easily by the body while fat requires more time to use for energy. At lower intensities (like the "fat burning zone"), the need for fuel is lower, so the body uses more energy from fat than carbohydrates. During high-intensity exercise, the demand for energy skyrockets, so the body uses carbohydrates, the rapidly available fuel source for energy. To rephrase, during lower intensity exercise a higher percentage of calories from fat are consumed. If I walk at a moderate pace for 10 minutes, I may burn 50 calories, 35 of which may be from fat (70%) and 15 from carbohydrate ( 30%). Performing sprint intervals for that same 10 minutes may burn 300 calories, 90 from fat (30%) and 210 from carbohydrate (70%). While those numbers and percentages aren't exact, the principle is accurate, tested, and proven. While you might not be in the "Fat Burning Zone," you will burn more calories overall AND more calories from fat.
Do high-intensity intervals. Interval training will have the greatest effect on fat loss and overall health. This consists of short, very intense bouts of exercise followed by a period of rest, then repeated. Your total time of exertion is lower, plus you the same benefits (and more) than just doing a long bout of lower-intensity exercise. These intervals can be designed any number of ways, and a simple Google search will lead you in the right direction.