What’s Our Logo All About?
The burning of fossil fuels – oil, gas and coal – produces carbon dioxide (CO2), among other greenhouse gas (GHG) emissions. A share of the annual CO2 emissions remains in the atmosphere for centuries, impeding the loss to space of heat that Earth receives from the sun.
We have enhanced our planet’s greenhouse effect by causing an over-concentration of CO2, methane (CH4) and other human-produced GHG. Over-concentration accounts for Earth’s energy imbalance and in part, the deadly heat, fires, and floods of recent years.
Our logo depicts calculated estimates from the cited source of Earth’s major carbon sinks. Uncertainties in the estimates account for significant year-to-year variation, but on average over the 1959-2019 period we estimate that about 44% of annual emissions remain in the atmosphere, with the ocean taking up approximately 24% and the land approximately 31% of such emissions.
Our logo simply distills that graphic, reminding us to consider the persistent role of the over-concentration of GHGs – and the need to act.