Life in The Green is:

soul-reviving

a place where our hearts can soar

a place where dreams come alive

awe-inspiring

surprising

a place where we can make many new discoveries

beautiful

exciting

refreshing

relaxing

wild

a breathing space (lit. and fig.)

a place that makes us feel alive

a place that helps us to feel connected (to our history, each other, the earth) = more human

a place that helps us to remain learners and observers

a place that challenges us
a place where life is allowed to flourish

Life in The Grey is:

soul-crushing

a place where no one cares

a place where no one feels
a place where no one is seeking

a place where we have no hope

a place where we have no dreams

monotonous

depressing

unexciting (boring)

a place where there are very few new discoveries

not inspirational

ugly

stressful

suffucating

scary

empty

controlled

slowly dying (inside and out)
a place where we feel isolated
a place where life withers away