Memorandum for the Petitioners 1100
and brought back to one point five (1.5) metric tons per
hectare. And you don’t need extensive calculation or
thinking or embedding an algorithm to say that that definitely
is a very important and decisive threat to food security.
Flooding will increase crop losses. And considering
that rice is a water-loving crop - in fact, Your Honors, in an
era of climate change and water scarcity, irrigated rice needs
something like ten thousand liters of water to generate one
(1) kilo of mill rice. However , while we are breeding
varieties of rice that can survive under flooded conditions for
a prolonged period of time, we're not yet there, because the
floods that we are experiencing are not only getting longer,
they’re getting more violent in terms of water flows and water
velocity .446
r
r
8.83. Further, the IPCC has stated that “all aspects of food security
are potentially affected by climate change, including food access,
utilization, and price stability .« 447 According to the IPCC, changes in
temperature and precipitation have negatively affected terrestrial crop
production (wheat and maize),448 as well as fishery productivity, due to fish
migrating to cooler and deeper waters in response to warming ocean
temperatures. 449 Expert witnesses Drs. Laura David, Maria Lourdes San
Diego-McGlone, and Porfirio Alino, all professors at the Marine Science
Institute of the University of the Philippines-Diliman, discussed this at length
in their presentation before the Honorable Commission.450
8.84. These impacts will become more widespread and severe in the
coming years, but even in the near term the impacts on global food security
could be devastating. For example, the IPCC projects that 10% of the impacts
on food security under a 2°C warming scenario would yield losses of more
than 25% in the period 2030-2049, with even greater losses expected after
2050. 451 For low-latitude countries like the Philippines, there is high
confidence that crop production will be “ consistently and negatively
affected by climate change in a 2°C warming scenario and fishery
production will also decline .452
-
Id. pp. 137 138.
Intergovernmental Panel on Climate Change ( IPCC) Working Group II, Climate Change 2014:
Impacts, Adaptation and Vulnerability, Summary for Policymakers p. 20, 6-8.
446
447
448
Intergovernmental Panel on Climate Change (IPCC), Climate Change 2014: Impacts, Adaptation and
Vulnerability, Contribution of the Working Group II to the Fifth Assessment Report of the IPCC, 713
(Christopher Field et al. [2014]) ( hereinafter, “IPCC AR 5 WGII”), p. 491, cited in Joint Summary of the
Amicus Curiae, supra note 50, p. 25.
449
Joint Summary of the Amicus Curiae, supra note 50, p. 25, citing IPCC AR5 WGII , p. 493 .
450
Exhibit “BB” to “BB-3,” Joint Statement of Maria Lourdes San Diego-McGlone, PhD Chemical
Oceanography; Laura David\ PhD Physical Oceanography; and Porfirio Alino, PhD Marine Chemical
Ecology :; see Testimonies of Drs. David, McGLone, and Alino, TSN 27-28 March 2018, pp. 129-156,
available at http://chr.gov.ph/vvp-content/uploads/2019/04/NICC-TSN-March-27-to-28-2018-MetroManila-Philippines.pdf ( last accessed on 12 September 2019).
451
Joint Summary of the Amicus Curiae, supra note 50, p. 25, citing IPCC AR 5 WGII, p. 488, 503-504,
452
Ibid
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