Material compositions, emissions factors, and LCAs
all in one place
Only pay for what you use
Benefits
Query ∞ million
datapoints & LCAs
Search for free
only pay for what you use
More accessible
for practitioners, researchers, and organizations
∞ results
Material
Emission factor
About
Circa’s Library contains material compositions, emission factors, and whole LCAs. There are over ∞ million records in the Library.
The Library is completely free to search— you only pay for data you’d like to use.
Our pricing is designed to make high quality environmental data more accessible, at just $0.95 per datapoint.
The Library contains data from a variety of sources, including the IPCC, Ecoinvent, and EPD International. The source of every record is listed so you always know where your data is from.
