The combined land and ocean surface temperature in 2007 fell within the 10 highest on record, while the average land temperature was the warmest since global records began in 1880. In the low to midtroposphere, the annual global mean temperature was among the five warmest since reliable global records began in 1958, but still cooler than the record warmest year of 1998. For the fourth consecutive year, the annual precipitation averaged over global land surfaces was above the long-term mean, although the anomaly was significantly less than in 2006 when the annual value was the eighth wettest since 1901. The globally averaged concentration of carbon dioxide (CO2) continued to increase in 2007, having risen to 382.7 ppm at the Mauna Loa Observatory in Hawaii. The average rate of rise of CO2 has been 1.6 ppm yr−1 since 1980; however, since 2000 this has increased to 1.9 ppm yr−1. In addition, both methane (CH4) and carbon monoxide (CO) concentrations were also higher in 2007. Over the oceans, global ... Abstract The combined land and ocean surface temperature in 2007 fell within the 10 highest on record, while the average land temperature was the warmest since global records began in 1880. In the low to midtroposphere, the annual global mean temperature was among the five warmest since reliable global records began in 1958, but still cooler than the record warmest year of 1998. For the fourth consecutive year, the annual precipitation averaged over global land surfaces was above the long-term mean, although the anomaly was significantly less than in 2006 when the annual value was the eighth wettest since 1901. The globally averaged concentration of carbon dioxide (CO2) continued to increase in 2007, having risen to 382.7 ppm at the Mauna Loa Observatory in Hawaii. The average rate of rise of CO2 has been 1.6 ppm yr−1 since 1980; however, since 2000 this has increased to 1.9 ppm yr−1. In addition, both methane (CH4) and carbon monoxide (CO) concentrations were also higher in 2007. Over the oceans, global ...

Indoor air pollution, particularly in rural communities, is a significant health determinant, primarily due to the prevalence of traditional cooking practices. The WHO estimates 4.3 million annual deaths related to household air pollution. This study quantifies indoor pollutants and assesses health impacts and perceptions regarding traditional cooking. Using Extech air quality monitoring equipment, the study measured particulate matter (PM), carbon monoxide (CO), and carbon dioxide (CO₂) in 48 rural homes. A survey of 39 women gathered insights on their use of wood for cooking and perceptions of air quality. This dual approach analyzed both environmental and social dimensions. Findings showed fine particulate matter (0.3, 0.5, 1.0, and 2.5 μm) exceeded safety limits by threefold, while coarser particulates (5.0 and 10 µm) were concerning but less immediate. CO levels were mostly acceptable, but high concentrations posed risks. CO₂ levels indicated good ventilation. Survey responses highlighted reliance on wood and poor air quality perceptions demonstrating little awareness of health risks. Common symptoms included eye discomfort, respiratory issues, and headaches. The study emphasizes the need for interventions to reduce exposure to indoor pollutants and increase awareness of health risks to encourage cleaner cooking practices in rural communities.

Introducción: como consecuencia de la política de desarrollo en los Planes Estatales (Municipales) de Acción ante Cambio Climático en México, es obligatorio el estudio de impactos de cambio climático, así como la percepción de la población cobra vital importancia con el fin de elaborar estrategias de mitigación y adaptación. Por lo anterior, el objetivo de este estudio es determinar la percepción de la población en los municipios costeros de Jalisco ante esta problemática ambiental. Metodología: esta se basa en el análisis subjetivo e individual de la percepción sobre el cambio climático, desde la aplicación de encuestas a los habitantes de la región de estudio. Resultados: la mayoría de los encuestados percibe un aumento en la temperatura y conoce el término “cambio climático”. Sin embargo, pocos consideran que sus efectos afectarán su vida cotidiana. Este hecho puede dificultar las acciones locales y regionales para la adaptación y mitigación del cambio climático. Conclusiones: solo la participación de tres niveles unidos (gobierno federal, gobierno estatal y sociedad) permitirá un exitoso cumplimiento de estas acciones. Finalmente, la población costera de tipo rural reconoce más el término de “cambio climático” y lo asocia con algún impacto en su comunidad, a diferencia de la urbana del municipio de Puerto Vallarta, Jalisco.