Dear GretaWhen everything seems to be going wrong, sometimes you just have to stand up for what you believe in, even if it's just in your own little corner of the world This was meant to be Alice's year to shine, but things are already going wrong At school, she's given young environmental activist Greta Thunberg as her pen pal for a fictional writing assignment. Why couldn't Alice get someone easy to write to, like a pop star? Then she's put in charge of