River water quality shaped by land–river connectivity in a changing climate

Nature Climate Change, Год журнала: 2024, Номер 14(3), С. 225 - 237

Опубликована: Март 1, 2024

Язык: Английский

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Impact of climate change on public health in Brazil

Public Health Challenges, Год журнала: 2023, Номер 2(1)

Опубликована: Янв. 28, 2023

Abstract Brazil is South America's largest country and economy, represented mainly by agricultural commodities. Its vast rainforest biodiversity are at constant risk from human actions that seen scientists contributing to climate change. This article dissects how influences directly indirectly affected change possible strategies control the current situation. Climate impacts Brazilian public health in multi‐scenarios influenced socioeconomical geopolitical aspects, such as urbanization, access sanitation sewage, precipitation intensity frequency, policies. Therefore, surveillance measures, alongside socioeconomic policies, must be orchestrated minimize impact

Язык: Английский

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Effects of heat waves on cardiovascular and respiratory mortality in Rio de Janeiro, Brazil

PLoS ONE, Год журнала: 2023, Номер 18(3), С. e0283899 - e0283899

Опубликована: Март 31, 2023

Background Heat waves are becoming more intense and extreme as a consequence of global warming. Epidemiological evidence reveals the health impacts heat in mortality morbidity outcomes, however, few studies have been conducted tropical regions, which characterized by high population density, low income resources, susceptible to on health. The aim this paper is estimate effects cardiovascular respiratory city Rio de Janeiro, Brazil, according sex, age, wave intensity. Methods We carried out time-stratified case-crossover study stratified age (0–64 65 or above), sex for older group. Our analyses were restricted hot season. included 42,926 participants, 29,442 whom died from 13,484 disease, between 2012 2017. death data obtained Janeiro’s Municipal Health Department. estimated individual-level exposure using inverse distance weighted (IDW) method, with temperature humidity 13 12 stations, respectively. used five definitions waves, based thresholds (90th, 92.5th, 95th, 97.5th, 99th individual daily mean season over period) duration two days. Conditional logistic regression combined distributed lag non-linear models (DLNM) short-term delayed period (5 days 10 mortality). controlled absolute public holidays. Results odds ratios (OR) increase intensify, although some effect estimates not statistically significant at 95% level when we applied most stringent criteria. Although different, our central suggest that greater than mortality. also but people women vulnerable definitions, OR higher among younger results indicate wave-related Conclusion show an risk compared non-heat ones. These intensity, suggests they Furthermore, elderly constitute groups waves.

Язык: Английский

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Research progresses and prospects of multi-sphere compound extremes from the Earth System perspective

Science China Earth Sciences, Год журнала: 2024, Номер 67(2), С. 343 - 374

Опубликована: Янв. 4, 2024

Язык: Английский

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Twenty-first-century demographic and social inequalities of heat-related deaths in Brazilian urban areas

PLoS ONE, Год журнала: 2024, Номер 19(1), С. e0295766 - e0295766

Опубликована: Янв. 24, 2024

Population exposure to heat waves (HWs) is increasing worldwide due climate change, significantly affecting society, including public health. Despite its significant vulnerabilities and limited adaptation resources rising temperatures, South America, particularly Brazil, lacks research on the health impacts of temperature extremes, especially role played by socioeconomic factors in risk heat-related illness. Here, we present a comprehensive analysis effects HWs mortality rates 14 most populous urban areas, comprising approximately 35% country’s population. Excess during was estimated through observed-to-expected ratio (O/E) for total deaths events identified. Moreover, interplay intersectionality vulnerability considering demographics heterogeneities, using gender, age, race, educational level as proxies, well leading causes excess death, were assessed. A increase frequency observed from 1970s (0–3 year -1 ) 2010s (3–11 ), with higher tendencies northern, northeastern, central-western regions. Over 2000–2018 period, 48,075 (40,448–55,279) excessive attributed growing number (>20 times landslides-related same period). Nevertheless, our event-based surveillance did not detect HW-mortality nexus, reinforcing that extreme are neglected disaster Brazil. Among diseases circulatory respiratory systems neoplasms frequent. Critical regional differences observed, which can be linked sharp North-South inequalities terms indicators, such life expectancy. Higher low-educational people, blacks browns, older adults, females. Such findings highlight strengthening primary care combined reducing socioeconomic, racial, gender represents crucial step deaths.

Язык: Английский

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Advancements in drought using remote sensing: assessing progress, overcoming challenges, and exploring future opportunities

Theoretical and Applied Climatology, Год журнала: 2024, Номер 155(6), С. 4251 - 4288

Опубликована: Март 5, 2024

Язык: Английский

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The time since land-use transition drives changes in fire activity in the Amazon-Cerrado region

Communications Earth & Environment, Год журнала: 2024, Номер 5(1)

Опубликована: Фев. 21, 2024

Abstract Deforestation and climate change are expected to alter fire regimes along the Cerrado-Amazon transition, one of world’s most active agricultural frontiers. Here we tested hypothesis that time since land-use transition (age frontier) intensification also drive changes in region’s by reducing probability both drought non-drought years. We modeled as a function transitions based on MapBiomas Project datasets from 1986 2020. find that, while burned area declined pasturelands aged croplands advanced, deforestation abruptly increased activity before (Amazon: 4 years; Cerrado: 3 years) after 8 7 land clearing for pasture, especially Amazon. Additionally, combination ignition risk, drought, air-dryness likelihood large extents areas associated with deforestation. Incorporating frontier age proxy governance modeling is crucial, given ecological implications changing despite declining rates probability. Most importantly, protecting against preserving native vegetation vital.

Язык: Английский

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Water availability and extreme events under climate change scenarios in an experimental watershed of the Brazilian Atlantic Forest

The Science of The Total Environment, Год журнала: 2024, Номер 946, С. 174417 - 174417

Опубликована: Июль 2, 2024

Язык: Английский

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Climatological patterns of heatwaves during winter and spring 2023 and trends for the period 1979–2023 in central South America

Frontiers in Climate, Год журнала: 2025, Номер 7

Опубликована: Фев. 13, 2025

In the last 40 years, trends in heat wave frequency, intensity, and duration have increased steadily around world. These intense waves were characterized persistent atmospheric blocking episode, with a continuous presence of warm air mass lack rain for several consecutive days, that contributed to pronounced positive temperature anomalies, reinforced by extremely low soil moisture, drought conditions. The year 2023 was warmest on record, global average +1.45°C above pre-industrial (1850–1900) values worldwide. South America since 1900, 0.81°C 1991–2020 reference period. Central experienced sequence heatwaves series being most during autumn spring 2023. From August December 2023, meteorological services Brazil, Argentina, Paraguay Bolivia reported record-high maximum temperatures this period stations east Andes identified 7 episodes affected all these countries. large-scale circulation patterns show an anomalously high-pressure system facilitated formation dome through dry, hot columns over dry soil. Several locations about 10°C normal, some 40°C days row. aggravated Amazonia second half El Niño year. Compound drought-heat favored hydrological drought, while dryness amplified risk fires.

Язык: Английский

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Compound risk dynamics of drought by extreme precipitation and temperature events in a semi-arid watershed

Atmospheric Research, Год журнала: 2022, Номер 281, С. 106474 - 106474

Опубликована: Окт. 18, 2022

Язык: Английский

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