Memorandum for the Petitioners 1101
8.85. In the Philippines, as shown, the agricultural sector is strongly
affected by climate change. The increasing frequency and intensity of
extreme weather events, such as tropical cyclones, are already having a
detrimental effect on food security, with these impacts only expected to
worsen over time— some models predict that there will be a 4% (or an
estimated 70,000 additional children) increase in malnourished children
in the Philippines by 2050 due to climate change . 453
r
8.86. Crop yields in the Philippines have declined whenever
temperatures have exceeded certain threshold values, which have been and
will be increasingly exceeded because of climate change.454 The effect of
rising temperatures and decreased rainfall on crop production could be
devastating. Rice yield could be reduced by 22 % in a 2°C scenario
according to one study, 455 while another study concludes that climate
change may reduce rice yield in the Philippines by up to 75% in 2100 as
compared with 1990 levels.456 Undersecretary Serrano quantified the losses
in this way
—
.
. . . Just to provide you also information on losses
Your Honors, when I started at the Department of
Agriculture way back in the 1990s, which was the last decade
of the last century, if we... if we lost thirty thousand (30,000)
metric tons of palay [rice grains] to an extreme event like a
typhoon, it's already big news and it's a big deal and triggers
speculation “Siguro kailangan mag-import na tayoP [There
is a need to import rice.]. Do you know how much we're
losing recently, Your Honors? We’re losing anywhere
from three hundred (300) to six hundred thousand
(600,000 ) metric tons of palay (rice grains). If at just fifty
percent (50%) milling rate, which is very low, just to
simplify the calculation, we’ re losing anywhere from one
hundred fifty (150) to three hundred thousand (300,000)
metric tons of milled rice due to extreme events . That is
about how much we import on a regular basis, Your Honors.
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XXX
. . . On corn or maize, that’s a one point seven
percent ( 1 .7%) percent reduction in yield for each day
above thirty degrees Centigrade under drought
conditions. That is pretty much substantial....
For livestock, although livestock production in this
country is a little bit more controlled because nakakulong
iyan at saka ano [they were caged and ...], but the feed
Lofts, K ., supra note 375, p. 6, citing Ortega, J. and Klauth, C. (2017), Climate Landscape Analysis for
Children in the Philippines (Makati City: UNICEF Philippines).
454
Joint Summary of the Amicus Curiae, supra note 50 , p . 25 .
455
Joint Summary of the Amicus Curiae, supra note 50, p. 25, citing Escano , C.R . and Buendia , L.V.
( 1994 ), Climate Impact Assessment for Agriculture in the Philippines: Simulation of Rice Yield Under
Climate Change Scenarios .
A5 SJoint
Summary of the Amicus Curiae, supra note 50, p . 25 , citing Asian Development Bank (2009), The
Economics of Climate Change in Southeast Asia: A Regional Review .
453
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