Israel, like many other countries in the Middle East and North Africa, experiences adverse effects from climate change. Annual and mean temperatures are increasing in Israel, with mean temperature expected to increase between by 2100. There is a reduction in annual precipitation and delayed winter rains.OECD. 2013. "Water and Climate Change Adaptation in Israel". OECD. Retrieved from: https://www.oecd.org/env/resources/Israel.pdf Israel is already experiencing droughts and water shortages. Heatwaves are other natural hazards expected to increase with climate change.

Climate change has exacerbated existing problems that come with living in a dry and arid region. Droughts have been more frequent and longer in recent years, which poses a risk to agriculture and water access. With the loss of agricultural land, many people are forced to move to urban areas. Urban areas, like Tel Aviv and Jerusalem are now facing overpopulation. Climate change has and will continue to have a significant impact on all areas of Israel as well as all people of Israel. Furthermore, lower income communities from Israel such as inhabitants from developing cities, new immigrants, ultra-orthodox jews, and Bedouins, as well as women, children, the elderly, and the chronically ill will experience the brunt of the burden of climate change.

Israel contributes 0.5% of global greenhouse gas emissions (GHG). These GHG come mainly from the power and industry sectors. Israel's emissions are predominately from gas and coal burning. Israel signed the Paris Agreement, and as a party to the global climate action it has committed to reduce its GHG by 27% below 2015 levels by reducing carbon emissions from municipal waste, transportation, and electricity sectors.

Greenhouse gas emissions

Energy consumption Energy in Israel is predominately from fossil gas and oil, although Israel has begun to use more renewables. The energy sector makes up the largest percent of total carbon emissions from Israel, at 48%. By 2030, Israel wants to reduce its energy consumption emissions by 30% by phasing out coal (by 2026) and switching to more gas while increasing the use of renewables.

Transportation After energy consumption, transportation is the second largest emitter of carbon at 22%. To decrease these emissions, Israel plans to have clean energy municipal buses and limiting new car emissions. To reduce car and truck emissions, Israel is going to ban gas cars from being imported by 2030.

Air quality Due to substantial growth in vehicle use and emissions from coal- and oil-fired power plants, the presence of Nitrogen Oxides (NOx) and Sulfur Oxides (SOx) in the air near Israel's major urban centers have increased significantly between 1980 and 2002. Nitrogen oxides doubled during these years. Also, CO2 increased by 190% and incidents of respiratory illness among children increased from 5% to 17%. Although greenhouse gas emissions have steadily risen from 1996 to 2007, as of 2010, concentrations of Nitrogen oxides and other pollutants have decreased around major traffic sites. Additionally, falling Sulfur oxide levels have been observed and attributed to more efficient fuel use in industrial power plants. However, despite the benefits greener technology in lowering per-capita emissions, rapid population growth and increased per-capita consumption have led to an overall decrease in air quality. Air quality is expected to worsen without proper policy measures to reduce pollutants.

Impacts Temperature and weather changes The Israel Meteorological Service has noted "a significant warming trend in all regions of the country." Increased heatwaves are caused by increased global temperatures from climate change. By the end of the 21st century, heatwaves in Israel will last three times longer and happen seven times more often. People located in the coast, lowlands, Northern Negev, and mountain region are susceptible to higher rates of warming than other regions in Israel. Each heatwave in Israel leads to 45 deaths on average. According to Israel Meteorological Service, peak temperature could reach 49.4 degrees Celsius in Tel Aviv-Yafo and 48 degrees Celsius in Jerusalem and 55.3 degrees Celsius in Eilat by the end of the 21st century.

By the end of the 21st century, heatwaves may result in about 330 deaths each summer. In June 2023, 300,000 people in Israel were left without electricity in the middle of a heatwave, which showed that the country is not prepared for the impacts of climate change. To cope with the changing world, "interdisciplinary regional collaborations are required to develop adequate public health adaptation to extreme weather events in a changing climate."

According to the OECD's report, in the medium scenario of warming (SSP 2-4.5) by the years 2080 - 2099 the average Israeli will be exposed to 80 days with temperature surpassing 35 degrees per year (third highest result from all countries reviewed in the report), to 145 warm nights (the increase from current levels is second highest). The increase in drought conditions and the exposure to drought conditions in those years in Israel is the highest of all countries reviewed in the report.

Precipitation

Israel is expected to experience a 10% reduction in overall rainfall by the end of the 21st century due to climate change according to data from Israeli Ministry of Environmental Protection as of 2020, with Israel Meteorological Service's estimate in 2024 predict a reduction of 20-25% in both rainfall amounts and rainy days. This change will result in water scarcity that is coupled with increased salinity. As a result of this change, the flow of the Jordan River will decrease by 22%. In 2020, the Ministry of Environmental Protection noted that climate change is expected to reduce rainfall, imperiling the availability of fresh water for the region. Yields of certain crops are expected to be damaged, as are industries for livestock and fishing. Currently, Israel does not experience a major difference in precipitation, but they do however experience a difference in distribution, frequency, and intensity of rain events such as an increase in rainfall in some regions and a decrease in others. Since 2000, there are less rainy days, but the rains are more intense. Long dry periods in the winter and extreme rain events with cold weather can negatively impact agriculture and natural ecosystems. These extreme weather events will result in both droughts and flooding, which is especially a hazard in urbanized settings. The change in rainfall can be serious considering Israel's already arid climate.

Sea level rise Various factors linked to the climate change, ranging from glacier melting(which form around 40% of sea level change contributions for Israeli EEZ between 1993 and 2024), changes in rainfall pattern and others, are contributing to rising sea levels along the Mediterranean basin, rising around 14.59 cm between 1992 and 2022. The rising sea "will ultimately affect all of Israel's coasts, from Rosh Hanikra to the border of the Gaza Strip," potentially leading to saltwater infiltration of aquifer groundwater and degrading coastal cliffs. Saltwater infiltration will affect agriculture through damaged crops which is a large source of revenue for Israel. As of right now, the approximate rate of sea level rise is 0.4-0.5 cm per year. According to Noga Kronfeld-Schor, the Ministry of Environmental Protection's head scientist, due to melting rate increases, sea level rise in Israel would have reached 5m by 2150. This change in sea level will dramatically decrease beach availability which has the potential to adversely affect tourist attraction, and it could also cause . Israel's long coastline will require infrastructure such as "residences, hotels, heritage sites, factories" and other major projects to be moved. Due to climate change, the sea will also become warmer and more acidic which has the potential to decrease the biodiversity of aquatic species.

Water resources Due to predictions of decreasing precipitation(both in time period and in amount), falling level of water bodies and increasing temperature, the IPCC "general circulation models projections agree on drying scenarios in the region by the end of the 21st century." Since Israel is located in an arid/semi-arid region, any changes to precipitation in the area will severely affect water resources, not to count strategical and geopolitical challenges this could have caused in a high-sensitivity region. For agriculture, Israel depends heavily on irrigation and water availability. The decrease in water availability can be seen in the decrease in incoming freshwater into the Sea of Galilee(notwithstanding temporary changes from raining in individual years, e.g. 2018). Any change in freshwater will also result in a change in salinity of the water. In response, Israel has used desalinated water for 60-80% of Israel's drinking water supply, and desalination increased by 120% between 2010 and 2019. This effort has placed Israel as a leading nation in desalination processes and recovery of wastewater. Israel's main source of water is the upper Jordan River. Overall, stream flows in the region have been documented as decreasing at a faster rate than rainfall measurements. These data indicate that evaporation is affecting the Jordan River more than a decrease rainfall.

Ecosystems

Rising temperatures due to climate change are profoundly impacting habitats especially those located in coastal regions. Coastal regions are also experiencing an increase of invasive species entering the Mediterranean through the Suez Canal. Dozens of species that are from more tropical environments are able to migrate to Israel's waters with the rising ocean temperatures. As a result of these changes in the ecosystems, Israel is working to protect its 118-mile coastline and ensure protection of biodiversity as well as keeping existing habitats safe from human interference. The Rosh Hanikra Marine Reserve has documented the survival of key species as a result of just a few years of protection through conservation. Since 2019, Israel has increased its coastline protection from 0.3% to 4% protected areas. Another 4.5% will be protected in the coming years. These levels of protection are not in line with the 2020 target of 10% protected coastline. In terms of land, 24% of Israel is considered nature reserves. The establishment of protected areas is becoming increasingly difficult with the influx of the population.

However, the ecosystem impacts will be uneven. A recent study about the ecosystems of Israel and climate change projections on native Israeli plants, demonstrated that a multi-year induced drought did not show to have a significant or detrimental effect on the semi-arid/Mediterranean plants tested. While the study only tested plants from two major ecosystem types, it challenges claims that climate change will have serious negative effects on all ecosystems of Israel.

Impacts on people Climate change has led to adverse impacts on the economy, agriculture, population health, and stability in Israel. Indeed, according to a study from 2023, climate change-linked heat wave could claim as many as 330 people each summer unless the issues have been addressed, with the above-65 population being most at risk. Climate change in Israel has disproportionate effects on vulnerable populations, such as women, children, the elderly, immigrants and marginalized communities.

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