That irrigation now looks unsustainable: «The problem is that groundwater consumption was not
capped at a sustainable level and now it will be difficult to curb demand,» Rodell notes.
Not exact matches
Now, one could argue it doesn't matter — both Amex and Citibank
capped those credits
at a
level they believe is
sustainable, so it makes no difference whether the credits apply to airfare or just airline fees.
Capped rewards
at this
level are
sustainable, but aren't usually lucrative enough for churning.
With growing concerns about the greenhouse gas balance of many types of biomass and bioenergy — as well as effects on biodiversity, land use, and competition with food production — the EU needs to get policies right by
capping the contribution of bioenergy to renewables targets
at sustainable levels, and promoting only bioenergy that is both
sustainable and delivers real carbon benefits.
On Thursday, 65 countries representing 83 % of international aviation agreed to
cap their greenhouse - gas emissions from international flights
at 2020
levels from 2021 onward — in part by forcing airlines to offset emissions above that threshold, and MAYBE by funding programs that save forests and support
sustainable agriculture around the world.