In climate action: a change in climate that can be identified by changes in the mean and/or variability of its properties and that persists for an extended period typically decades or longer, whether due to natural variability or as a result of human activity [Section 3(d), Climate Change Act of 2009, as amended by Republic Act No. 10174]
In climate action: a change of climate which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods [Section 1(d), Climate Change Commission Resolution No. 3, Revised Implementing Rules and Regulations (R-IRR) of Republic Act No. 9729, Otherwise Known as the Climate Change Act of 2009, As Amended By Republic Act No. 10174]
Note: The IRR uses the definition of climate change under Article 1.2 of the United Nations Framework Convention on Climate Change (1992). Cf Intergovernmental Panel on Climate Change, Glossary, Special Report: Global Warming of 1.5oC (2018): “a change in the state of the climate that can be identified (e.g., by using statistical tests) by changes in the mean and/or the variability of its properties and that persists for an extended period, typically decades or longer. Climate change may be due to natural internal processes or external forcings such as modulations of the solar cycles, volcanic eruptions and persistent anthropogenic changes in the composition of the atmosphere or in land use”.
In climate, energy, and labor: a change in climate that can be identified by changes in the mean or variability of its properties and that persists for an extended period typically decades or longer, whether due to natural variability or as a result of human activity [Section 4(b), Philippine Green Jobs Act of 2016; Section 3(a), DOLE Department Order No. 180, Implementing Rules and Regulations of Republic Act NO. 10771]
Note: The Philippine Green Jobs Act of 2016 refers to mean or variability, instead of mean and/or variability under the Climate Change Act.