Dear National Geographic,
I have faithfully and happily read your magazine from cover to cover, every month for the past 32 years. But I will not be renewing my subscription. Lately you have succumbed to what I can only call the culture of corporate greed by stooping to native advertising. This is the practice of accepting advertising dollars to embed messages or viewpoints in your articles, books and videos. By doing so, in my eyes, you have lost credibility in the selection and content of your articles and the research projects you choose to fund. Scientific research, the arts of photography, writing, illustration and map-making are all tarnished by your decision to use native advertising. You no longer have my trust and I hope other subscribers will follow my example.