Green Party has named Dr. Amita Kuttner as interim leader on Wednesday.They are the youngest and first transgender and east-Asian person to ever lead a national party, according to the Greens.The 30-year-old is an astrophysicist with expertise in black holes and is the founder of the Moonlight Institute, a non-profit that explores responses to climate change.Kuttner was in the running to replace former leader Elizabeth May but lost to Annamie Paul, who since faced turmoil within the party and stepped down in November.