香京julia种子在线播放

Climate change is a global dilemma (1–3) affecting all aspects of life including health (4). Climate change results in rising temperatures, reduced air quality, threatened water supplies and safety, and increased food insecurity, which ultimately impact the health of populations (5–8). Rising temperatures contribute to the creation of favorable circumstances for disease vector breeding and illness dissemination and thus increase the risk of infectious diseases (9). Moreover, climate disasters disrupt a nation’s infrastructure, particularly its health systems, which challenges and reduces access to health care.

Cancer is a leading cause of death among women; in 2020, 4.4 million women worldwide succumbed to the disease, with 25% of these deaths attributed to breast cancer (10). Climate change exacerbates this burden by increasing exposure to carcinogenic risk factors. For instance, rising temperatures and environmental changes can elevate exposure to air pollutants, ultraviolet (UV) radiation, and endocrine-disrupting chemicals, all linked to higher cancer incidence (11). To understand how these environmental exposures interact with social and biological factors to influence health outcomes, we can apply the Eco-Social Theory, proposed by Nancy Krieger. This theory emphasizes the importance of considering the complex interplay between ecological systems and social structures in determining disease distribution (12).

Additionally, climate change can disrupt healthcare delivery systems, hindering timely cancer screening, diagnosis, and treatment, thereby adversely affecting cancer outcomes (13). Women, in particular, face heightened exposure to modifiable risk factors intensified by climate change, such as increased contact with environmental toxins and prolonged UV radiation exposure (14). Addressing these modifiable risk factors and strengthening healthcare infrastructure are crucial in mitigating the impact of climate change on women’s cancer risk.

Climate change disproportionately harms women due to social factors, such as cultural norms and economic disparities (15). The Health Equity Framework highlights how these disparities in economic power, healthcare access, and social structures create vulnerabilities, making it more challenging for women—especially in low-resource settings—to effectively mitigate cancer risks (16).

Additionally, physiological vulnerabilities, including pregnancy-related health risks, make women more susceptible to climate-related health impacts. Rising temperatures and exposure to particulate matter (PM) from air pollution have also been linked to increased morbidity and mortality in women. Furthermore, pregnant women are more susceptible to climate change. Pregnancy-related hazards, such as preterm birth, fetal development retardation, and hypertensive disorders, are increased (17).

Gender disparities, sociocultural norms, and historical inequalities. In the MENA region, gender disparities, sociocultural norms, and historical inequalities significantly impact women’s cancer outcomes. Limited healthcare autonomy, economic inequalities, and restrictive laws delay diagnoses and hinder timely treatment (18). In many societies, cultural taboos around reproductive and breast health reduce awareness and participation in cancer screening programs, while stigma surrounding gynecological cancers further discourages early medical intervention (19, 20).

The MENA region is particularly at risk due to global warming (21). By 2050, a temperature rise of 4°C is expected (22), with a yearly increase in drought incidence (23), making it “the most water-stressed region on Earth” (24). MENA region has a population of 493,264,873 with 48.3% females (25). In 2019, 420,812 people died from cancer in the region, 175,707 of whom were women (26). Given the region’s extreme climate conditions, women’s cancer risks may be further compounded by rising temperatures, worsening air pollution, water insecurity, and disruptions in healthcare systems, all of which can influence carcinogen exposure, cancer screening, and outcomes (13).

An eco-social perspective reveals how climate change amplifies environmental exposures contributing to cancer risk, while the health equity framework highlights its unequal burden on marginalized women with limited healthcare access. Sociological insights further underscore the role of gender norms, cultural restrictions, and historical inequalities in shaping cancer disparities in the MENA region.

Despite the growing body of research on the relation between climate change and women’s cancer, there are still many gaps in our knowledge. The current study aims at investigating the relationship between climate change and cancer in women in the MENA region by assessing the influence of rising ambient temperature on the prevalence and deaths caused by four types of women’s cancer: breast cancer, cervical cancer, ovarian cancer, and uterine cancer.

The results of this study are two parts, regional and country level. This first part covers the MLR analysis investigating the relation between the prevalence and deaths from four types of women’s cancer and the independent variable TEMP while controlling for GDP in the MENA region. The results (Table 1) showed that seven of the eight dependent variables were statistically significant (p < 0.05), indicating that the models effectively explain the variance in cancer deaths and the prevalence of breast, ovarian, and cervical cancers.

For every one-unit increase in TEMP, deaths from the four cancers increased by 0.171 to 0.332 units, with ovarian cancer showing the highest correlation (0.332) and cervical cancer the lowest (0.171). Regarding prevalence, the B coefficient showed an increase between 0.173 and 0.280 units, with ovarian cancer having the highest correlation and breast cancer the lowest.

The second part examines MLR results for each of the 17 countries.

As indicated above, MENA region is a climate change high risk area characterized by temperature average increase that is above the average for other regions. The results of this study show that climate change represented by increased temperature is significantly related to increased deaths and prevalence of cancer in women in the MENA region.

Several individual and socioeconomic factors may increase the risk of cancer in women (29). Climate changes including temperature are found to affect the social determinants of cancer including availability and quality of clean air, water and housing. As well as its effect on cancer health care infrastructure and the accessibility to these infrastructures in countries (13). Prolonged ambient high-temperature exposure is not yet recognized as one of these risk factors. There is no identified direct relation between increased atmospheric temperature prolonged exposure and cancer prevalence and deaths, the effect of climate change on the process of carcinogenesis is not proven yet. Nevertheless, prolonged exposure to a combination of rising ambient temperatures and traffic-related air pollution has been associated with an increased risk of gynecological cancers, including cervical, endometrial, and ovarian cancers (30).

Moreover, research suggests that external temperature influences the mechanical properties of cells. Even minor temperature changes can significantly alter cell characteristics, with increased temperatures enhancing optical deformability, including in breast cells (31, 32).

This study concentrated on two measures for each type of women’s cancer included: mortality (deaths) and prevalence. Mortality rates reflect the incidence of the disease as well as the availability of early detection and treatment. Cancer is one of the main causes of mortality among women around the world (37). Given the general improvements in cancer treatment and early diagnosis (33, 34), the mortality rates of cancers in women ought to have decreased over time. Nevertheless, looking at the data for 17 countries in the MENA region (Figure 1), it is observed that this was not the case for the four types of cancers in women in these countries. Indicating that incidence rate effect has exceeded the effect of early detection and treatment and according to this study results, incidence is correlated to the increase in ambient temperature.

As for the prevalence of a disease, it reflects both the exposure to risk factors and the availability of screening. Advancement in cancer screening methods over the years contributes to the increased prevalence as more cases are discovered through screening. However, this does not annulated the contribution of increased exposure to risk factors. Figure 2 provides an overview of the prevalence of the four types of women’s cancer in the 17 countries included in the study demonstrating the general trend in increased prevalence of these cancers among women in these 17 countries over the years.

Screening and treatment are factors related to the level of medical advancement in a country as well as on the accessibility to health services. Although there are variations among the 17 countries included in this study in these aspects, these countries have been advancing in terms of medical service availability and accessibility through the years thus the provision of more screening and treatment. Increased screening means increased prevalence but it also means decreased deaths as the increased screening leads to higher probability of treatment and thus less deaths. The fact that both prevalence and deaths increased highlight the importance of the other two factors: exposure to risk factors and subsequently increased incidence. And given the results of this study that prolonged exposure to high ambient temperature is correlated to the prevalence of three women cancers in the MENA region, one can deduct that high ambient temperature can be considered as a potential risk factor.

Although the correlation results for the prevalence and deaths were significant for the region as a whole, the correlation for the disaggregated data by country showed different results. As observed in Figure 1, certain countries exhibit particularly high prevalence rates, standing out as potential outliers. To explore these variations, we examined country-specific trends. The results show that only six countries showed significant correlation between the increase in ambient temperature and the prevalence and/or deaths by the four cancer types (Table 6). Within the six countries, four countries are Gulf countries (Qatar, Bahrain, Saudi Arabia and UAE). Gulf countries are known to have relatively extreme ambient temperatures especially during the summer which could be the reason behind the correlation results. Within these four countries, Qatar was the one with significant correlations for the four cancer types both in prevalence and in deaths indicating the need for further in-depth investigation. In addition to these four gulf countries, Jordan shows similar results which raises further questions. According to Jordan’s Climate Risk Profile (35), the country is facing drastic effects of climate change manifested in extreme weather events such as floods, droughts and increased ambient temperature. The projection estimates that by 2080 air temperatures in Jordan will rise by up to 4.5°C. Furthermore, there is a high degree of certainty that the number of days per year in Jordan with a maximum temperature above 35°C will increase. These climate changes effects in Jordan might be the reason behind the significant correlation between the increase in ambient temperature and the prevalence of two women’s cancers and the deaths caused by all four types of cancers. Lastly, within the significant correlation results, Syria had a significant correlation between increased ambient temperature and the prevalence of cervical cancer while Iran had a significant correlation with cervical cancer deaths. These two occurrences can be related to increased temperature where Iranian population is subjected to periods of prolonged heat especially in urban areas (36) and Syria is experiencing increases in temperatures. Although in the case of Syria, temperature increase is not that extreme in populated areas which leads to the conclusion that other factors might be contributing to this result.

Some countries, such as Algeria and Lebanon, did not exhibit statistically significant associations between ambient temperature and cancer outcomes across the four cancer types. These non-significant results may reflect different local contexts, milder temperature variations, or other dominant health determinants not captured in the current model.

Although more research is needed to validate and generalize the findings of this study, the findings highlight the necessity of including climate change adaptation measures into national cancer control plans. This can be achieved by encouraging interdisciplinary methods to address the confluence of climate and health, promoting sustainable environmental policies to limit the implications of climate change, and including climate adaption strategies into the planning of health care infrastructure.

This study highlights how climate change is no longer a distant environmental concern but a pressing threat to women’s health. The findings support the existence of a correlation between prolonged exposure to high temperature and the burden of women’s cancers in the MENA region. The relationship was evident at both the regional and country levels and was more pronounced in countries experiencing extreme heat.

The implications of these findings are important. It calls for immediate attention from policymakers and health planners. It highlights the urgency of integrating climate-related risks into health policy, with a focus on women’s health. Countries with high exposure should strengthen their cancer early detection and response systems. This includes improving awareness, screening, and access to care. Cross-sectoral collaboration between health, environment, and planning institutions is needed. Countries with lower burden should also act early, using these findings as an early warning.

The study adds to the growing recognition of the intersection between climate and health. It contributes to shaping future dialog and action on equitable, climate-resilient health systems in the region. Nevertheless, the study has limitations. Further work is needed to validate the findings using larger samples and to explore the mechanisms linking temperature and cancer.

Finally, this research’s results call for coordinated, climate-informed public health policies that protect vulnerable populations—especially women—from compounding environmental risks.