Spill-over effects

Unintended or indirect environmental, economic or social effects in developing countries caused by mitigation actions (i.e. actions taken to cut greenhouse-gas emissions) by developed countries. Spill-over effects can affect developing countries as a whole or specific sectors within these countries. For example, emissions reductions in developed countries could lower the global demand for oil and thus international oil prices, leading to more use of oil and greater emissions in developing nations, partially off-setting the original emissions cuts. This type of spill-over effect is called "carbon leakage". Spill-overs can have both positive and negative effects, and are sometimes also referred to as "rebound effects" or "take-back" effects

unfccc.int (general source)
Wikipedia.org (Carbon_leakage)