Free posters? Jup, the UN Environment Programme has a series of free posters you can download (in PDF) compiled from the UNEP’s Geo Data Portal
The full-colour posters are divided into four main groups:
The Basic Facts posters contain 9 posters covering: electricity consumption; ecosystem management; hazardous waste management; global environment treaties; forest management; carbon dioxide emissions; fisheries; waste management and recycling and electricity production
The InfoGraphics posters contain 13 posters covering: global environmental indicators; recycling rates of OECD countries; global CO2 emissions and wealth; total CO2 emissions; total final energy consumption; marine fish catch; global total and capita CO2 emissions; energy supplies and FCS forests.
The ISO Code posters contain 9 posters covering: global CO2 emissions; global water footprints; global ecological footprint; world heritage sites and energy supply per $1000 GDP (PPP)
The Bubble Chart posters contain 3 posters covering: CO2 emissions and wealth