Memorandum for the Petitioners | 82
are vulnerable to ongoing climate change and weather and climate extremes ,
to different extents.» 350
8.27. The IPBES Global Assessment Report on Biodiversity and
Ecosystem Services also states that climate change is a direct driver that is
increasingly exacerbating the impact of other drivers on nature and human
well-being. 351 “The impacts of climate change have contributed to
widespread impacts in many aspects of biodiversity, including species
distribution, phenology, population dynamics, community structure and
ecosystem function. According to observational evidence, these effects are
accelerating in marine, terrestrial, and freshwater ecosystems and are already
impacting agriculture, aquaculture, fisheries, and nature’s contributions to
people.»352
r
r
8.28. Climate change is already forcing biodiversity to adapt by
shifting habitats, changing life cycles, or developing new physical traits.353
The IPBES Global Assessment Report on Biodiversity and Ecosystem
Services also states that “climate change is projected to become increasingly
important as a direct driver of changes in nature and its contributions to people
in the next decades
Even for global warming of 1.5°C to 2°C, the majority
of terrestrial species ranges are projected to shrink dramatically.... Therefore,
scenarios show that limiting global warming to well below 2°C plays a critical
role in reducing adverse impacts on nature and its contributions to people.»354
8.29. Projected adverse impacts of climate change on forests include
increased occurrence of forest fires, which will put the forests at risk and
increased occurrence of pests and diseases and loss of thousands of species.
With the reduction of the forest area, ecosystem services such as biodiversity,
water, climate regulation, soil and water purification, recreational, cultural
and spiritual benefits provided by the forests will also decrease.355 Tropical
forests, like the ones in the Philippines, also have the largest potential to
mitigate climate change amongst the world’s forests through conservation of
existing carbon pools (e.g. prevention of deforestation ) and expansion of
carbon sinks.356
IPCC 2019, Summary for Policymakers: Climate Change and Land, supra note 1 1 1 , Sec. A 1 .2.
IPBES , Diaz , J., Settele, E ., el al . (2019), Summary for policymakers of the global assessment report on
biodiversity and ecosystem services of the Intergovernmental Science- Policy Platform on Biodiversity and
Ecosystem Services (hereinafter, “IPBES 2019”), Sec. B2, available at
https://www. ipbes.net/system /tdPipbes_7_ l O add- 1 - advance _0 .pdf ? file= 1 &type =node&id =35245 ( last
accessed on 12 September 2019).
352
Ibid.
353
Ibid.
354
Ibid.
355
Lasco, R., et al (June 2008 ), Climate Change and Forest Ecosystems in the Philippines: Vulnerability,
Adaptation and Mitigation, Journal of Environmental Science and Management , available at
https://www . researchgate.net/publication/237298215_Climate_Change_and _Forest_Ecosystems_in_the _Ph
ilippines_Vulnerability_Adaptation _and _Mitigation ( last accessed on 12 September 2019).
356
Ibid, p. 6.
350
351
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