Porter Airlines is replacing door seals on De Havilland Canada Dash 8-400 turboprops to address the type of rapid cabin decompression on 17 July, the Toronto-based airline says. The cause of that ...

Q. My house has an old wood front door and a steel back door. I cannot afford to replace them, but I want to make them more airtight and efficient. What things can I do myself to improve them? A.

There are many renter- and homeowner-friendly fixes for drafty windows so you can keep your warm air inside where it belongs.