(of a system or machine) achieving maximum productivity with minimum wasted effort or expense.
efficient
25
totally disappear.
sink without trace
20
to a greater degree than normal; unusually.
exceptionally
15
being the primary cause of something and so able to be blamed or credited for it.
responsible
25
the production and discharge of something, especially gas or radiation.
emissions
20
a target of completely negating the amount of greenhouse gases produced by human activity, to be achieved by reducing emissions and implementing methods of absorbing carbon dioxide from the atmosphere.
net zero
15
a distinct part or branch of a nation's economy or society or of a sphere of activity such as education.
sector
25
do one's fair share of work.
pulling one’s weight
20
occurring or done many times at short intervals. (of a person) doing something often; habitual.
frequent
15
a person who lives somewhere permanently or on a long-term basis.
resident
25
a change in global or regional climate patterns, in particular a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
climate change
20
an objective or result towards which efforts are directed.
target
15
not including; other than.
except
25
comprise or contain as part of a whole.
include
20
the systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.
