Trees take eight to 10 years to grow to full size, which means losing any to disease can set farmers back by years.

Christmas tree growers in Atlantic Canada are monitoring the spread of a disease and looking for ways to combat it.

Seven (Bonus point if you can name them all - Asia, Africa, North America, South America, Antarctica, Europe, and Australia.

Caroline Williams, founder of Chicago Muslims Green Team, is using her Islamic faith to change Chicago’s green scene.