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Fetches the Regional Greenhouse Gas Initiative (RGGI) annual CO2 allowance distribution table from the public RGGI website. Covers 11 participating US states from 2009 onwards.

Usage

co2_rggi_allowances(year = NULL, refresh = FALSE)

Arguments

year

Integer year (2009-present). Default is the current year.

refresh

Re-download? Default FALSE.

Value

A data frame with one row per participating state plus a "Total" row: state and one numeric column per measure in RGGI's table (allowance budget, sold at auction, cost containment reserve, and so on; the set varies a little by year). Cells RGGI marks N/A are NA.

Details

Auction clearing prices are NOT returned here because RGGI publishes them only as per-auction PDFs (no CSV aggregation exists). For RGGI prices, use co2_icap_prices() with jurisdiction = "Regional Greenhouse Gas Initiative".

Examples

# \donttest{
op <- options(carbondata.cache_dir = tempdir())
try({
  a <- co2_rggi_allowances(year = 2026)
})
#> ℹ Downloading RGGI allowance distribution for 2026...
options(op)
# }