It might seem obvious and straightforward that, when it comes to climate change, the United States owes something to the planet’s less-wealthy nations for the consequences of our fossil fuel burning.

I am writing this as a postcard from South Africa. The winter sun must be influencing my mood because this column will ...

I am writing this as a postcard from South Africa. The winter sun must be influencing my mood because this column will primarily be an optimistic one. I am here on a farm study tour as a guest ...