By only cooking meals that are vegetarian/pescatarian (and cooking at home more often than eating out), my overall meat intake will drastically reduce.
Though it is theorised that going fully vegetarian can cut one's carbon footprint in half (which is an amazing incentive to do so), it is unlikely that everyone will be able or willing to make this drastic change, due to habitual eating patterns and different biological needs. However, the 'flexitarian' option provides a perfect and realistic solution, since it allows for the consumer to enjoy the occasional 'meat' meal whilst remaining vegetarian for the majority of the time. Thus, by even just reducing one's meat intake (and not cutting it out completely) we can massively improve our current environmental situation, in a way that is realistic and very achievable.
Therefore, by pledging to ensure all the meals I cook at home are pescatarian/vegetarian (while still allowing myself to pick a meat meal if I so wish when eating out), I am exercising a perfect example of the flexitarian diet and how easy it can be for everyone to jump on board - now, even those who think they can't live without meat can get involved and make a huge difference!