How a steak & potatoes girl became a staunch supporter of Meat Free Monday

Yesterday was the UN Climate Summit in New York City, which basically discussed what the world can do to slow down climate change.  I've always been a green person that's taken interest in the environment, trying to conserve and not produce waste.  But I love steak and potatoes.  It's one of my favorite meals.  When I was in the U.S. this past August, this is what I ate and it was probably one of the best meals I've ever eaten:

I don't regret it one bit.  That was a really, really delicious steak.  I will admit it -- I like to eat meat.  Even so, one particular group that I've become a staunch supporter of is Meat Free Monday.  The idea behind the group is simple: the livestock sector (read: meat) is one of the biggest contributors to climate change, and by reducing the amount of meat we consume, we can make a difference.  By having one meat-free day per week, we can reduce greenhouse emissions significantly.  I've actually gotten so used to not including meat in what I cook that I actually do the reverse -- I eat meat maybe only once a week, if that.  So how did a steak & potatoes girl end up eating meat so rarely?