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East Kalimantan Environmentally Sustainable Development Strategy

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99<br />

predict increased precipitation for the region. There is also a weaker link between climate change<br />

and droughts although there is a link to the El Nino Southern Oscillation (which in turn is linked to<br />

the low rainfall and dramatic spread of man-made fires in 1997 and 1998 in <strong>East</strong> <strong>Kalimantan</strong>).<br />

Agricultural yields could be significantly affected. Whereas many plant species are adapted<br />

to seasonal temperature variations, tropical species typically have a much lower tolerance for<br />

changes in temperature. The World Bank predicts that by 2050 Indonesia could see a 10 percent<br />

decrease in major crop yields due to temperature and rainfall changes. Finally, vector-borne<br />

diseases can increase, as dengue- and malaria-carrying mosquitoes expand their habitats with<br />

rising temperatures. <strong>East</strong> <strong>Kalimantan</strong> currently has a low incidence of malaria; its future moderate<br />

temperature increase compared to global averages and mountainous interior (higher altitudes with<br />

lower temperatures) could serve to moderate any expansion of the habitat of vector-borne diseases.<br />

<strong>East</strong> <strong>Kalimantan</strong> has extensive coral reefs, 86 percent of which are considered at risk. 22<br />

Indonesia’s longest continuous barrier reef system, the Sunda Barrier Reef, some 630 kilometers<br />

long, lies on the edge of the Sunda Shelf. It is largely unexplored despite its size and potential<br />

economic, social, and biological importance. <strong>East</strong> <strong>Kalimantan</strong>’s coral reefs are impacted by<br />

climate change in three ways. Coral bleaching occurs during abnormally high temperatures in the<br />

ocean and kills coral if they last more than two weeks. Coral drowning occurs when coral cannot<br />

grow fast enough to keep up with rising sea levels. Oceanic acidification occurs as more CO2 is<br />

dissolved in the ocean and disturbs coral growth.<br />

However, the threats of coastal flooding and inland flooding could pose a moderate risk<br />

to the province overall and potentially substantial localized risk to specific districts.<br />

<strong>East</strong> <strong>Kalimantan</strong> has 1,185 km of coastline, 368 small islands, and several coastal cities, such as<br />

Tarakan, Bontang, and Balikpapan. While <strong>East</strong> <strong>Kalimantan</strong> is relatively protected from event-driven<br />

(or storm-driven) coastal flooding, it is susceptible to coastal flooding from gradual rises in sea<br />

<strong>East</strong> <strong>Kalimantan</strong> climate risk landscape: Current climate risks already pose<br />

a moderate threat to people and assets<br />

Moderate risk<br />

<strong>East</strong> <strong>Kalimantan</strong> is prone to event-driven natural hazards …<br />

Coastal flooding<br />

and sea-level rise<br />

▪ <strong>East</strong> <strong>Kalimantan</strong> has a long<br />

coastline with major<br />

population centers<br />

▪ Susceptible to sea level rise<br />

▪ Strong relationship to climate<br />

change<br />

Storms<br />

▪ <strong>East</strong> <strong>Kalimantan</strong> is away from<br />

major tropical cyclone tracks, due<br />

to close proximity to the Equator<br />

(storms typically originate > 10 o )<br />

DRAFT<br />

Inland flooding<br />

▪ El Niño Southern Oscillation<br />

and rainfall are strong<br />

drivers<br />

▪ Flooding in Samarinda<br />

▪ Moderate link with climate<br />

change<br />

Malinau<br />

Region<br />

Nunukan<br />

Region<br />

Berau<br />

Region<br />

Kutai Timur<br />

Region<br />

Drought<br />

▪ Low historical incidence<br />

outside; but increased fires of<br />

1997-98 linked to El Nino<br />

▪ Linked to ENSO, but weak<br />

climate change link<br />

Tarakan<br />

Bulungan Region<br />

… and also faces hazards from<br />

gradual climate change shifts<br />

Malaria and vectorborne<br />

diseases<br />

▪ Increasing temperature and<br />

rainfall are largely accepted<br />

as factors that increase<br />

malaria infection rates<br />

Agriculture yield<br />

change<br />

▪ Agriculture is 5% of GDP but<br />

important in rural areas<br />

▪ World Bank predicts yields<br />

could be negatively impacted<br />

by 10% in Indonesia due to<br />

climate change<br />

Exhibit 67<br />

Landslides<br />

▪ <strong>East</strong> <strong>Kalimantan</strong> has low<br />

incidence of landslides<br />

compared to Java or Sumatra<br />

▪ Linked to rainfall intensity and<br />

land use<br />

Kutai<br />

Barat<br />

Region<br />

Bontang<br />

Samarinda<br />

Kutai Kartanegara Region<br />

Balikpapan<br />

Penajam PU Region<br />

Pasir Region<br />

Damage to coral<br />

reefs<br />

▪ Source of livelihood<br />

(fisheries, tourism, etc.) and<br />

natural barrier of protection<br />

▪ Coral is killed by bleaching,<br />

drowning, and acidification,<br />

linked to climate<br />

SOURCE: EM-DAT;<strong>East</strong> <strong>Kalimantan</strong> in Statistics BPS; press clippings; interviews; academic literature<br />

22 Based on Indonesia’s overall average as estimated by Reefs at Risks.

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