Subscribe now

Letter: Letters: Green greens

Published 5 June 1993

From HARRY PHILCOX

Thwaites is correct when he states that light is often the limiting factor
in plant growth. However, in answer to his question:

If plants were black, they would indeed absorb all solar radiation. But
they would reflect none at all and consequently would act as perfect
‘black-bodies’. Due to this they would overheat and die, due to a
combination of essential enzyme denaturation and unchecked water loss via
evapotranspiration.

Also (not intended as a science versus religion argument); if God had made
all plants black, what a boring world this would be to live in.

Harry Philcox
Halebank, Cheshire

Issue no. 1876 published 5 June 1993

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with New Scientist events and special offers.

Sign up
Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop