Household Sharing for Carbon and Energy Reductions: The Case of EU Countries

Temporal trend and driving effect of demographic transitions on embedded carbon emissions of Chinese households

A population is regarded as the main non-economic driver of carbon emissions, causing the climatic crisis, especially in China experiencing a dramatic demographic transition. In contrast to aging, low fertility, the most remarkable feature of the Chinese population transition, has always been ignored when evaluating carbon emissions, due to the lack of long-run data. To narrow this gap, an integrated framework combining the continuous input-output tables from 1997 to 2018 with the Mann-Kendall test and vector auto-regression was presented to clarify the fluctuating trend of household embedded carbon emissions and the driving pattern of low fertility, aging, and urbanization. Our main findings showed that changes in household embedded carbon emissions have increased sharply in the last two decades. The growth of Chinese household embedded carbon emissions began to accelerate in 2001, which lagged 1 year behind the demographic indicators. Low fertility has a positive impact on households' embedded carbon emissions. More importantly, the impact of low fertility is more significant and far-reaching than that of aging. These suggest that aggressive policies for stimulating fertility and low-carbon lifestyles should be considered by policy makers.

Barriers and enablers around radical sharing

Multiple social and ecological crises are currently unfolding, the tackling of which requires a thorough understanding of their interlinkages and root causes. More sharing of essential resources while increasing access to valuable goods and services, especially for the most vulnerable in society, has been proposed as an effective strategy to reduce environmental and social damage. However, a more reflective approach to sharing is needed to make sure that it does not worsen some of the issues that it aims to address. In this Personal View, we outline the principles of radical sharing, which highlight the salience of environmental limits, access to essential goods and services, and non-exploitative relationships. Furthermore, we discuss key enablers and barriers to radical sharing and a more successful integration into sharing practices that prioritise needs satisfaction for all within planetary boundaries. Critical perspectives on the sharing economy need to account for the role of power, politics, capitalism, and citizenship alongside the more widely discussed issues around exploitation, discrimination, and greenwashing.

Direct and Indirect Carbon Emission from Household Consumption Based on LMDI and SDA Model: A Decomposition and Comparison Analysis

Household consumption has become an important field of carbon dioxide emissions. Urban–rural disparity in the household carbon emissions (HCEs) of residents and their influencing factors are relevant to HCE reduction. Taking Fujian as the study area, the LMDI and SDA models were used to analyze the effects of influencing factors for the direct household carbon emissions (DHCEs) and indirect carbon emissions (IHCEs) of urban and rural residents from 2006 to 2018. The HCEs continue to rise, approximately 65% from the IHCEs in 2017, and urban areas occupied 67% in 2018. The gap between urban and rural per capita HCEs is narrowing. In 2017, approximately 75% of urban per capita HCEs came from the IHCEs, while the per capita DHCEs’ occupation exceeded the IHCEs in rural areas. Per capita consumption expenditure has the largest positive effect on the DHCEs and IHCEs in urban and rural areas. With the urbanization process, the inhibition effect of rural DHCEs is larger than the positive effect of the urban DHCEs, while the positive impact on urban areas is more substantial than on rural areas in the IHCEs. Combined with regional differences, urban and rural areas should take “common but differentiated” emission reduction responsibilities.

Examining the Relationships between Religious Affiliation, External and Internal Behavioural Factors, and Personal Carbon Footprint

Different studies have shown that daily consumption is responsible for a large portion of greenhouse gas emissions. Since consumption is closely linked to individuals’ preferences, motivations, and beliefs, the personal carbon footprint should be a good indicator of actual consumers’ commitments towards climate change mitigation. Previous research has shown the importance of considering individual-level religion as an antecedent of mitigation outcomes, although the evidence is inconclusive in this regard. This study examines the relationship between religious affiliation and personal carbon footprint, following socio-psychological models that consider behaviour to depend on external or situational factors, and internal or intrinsic ones. A questionnaire was carried out on a random sample of the Spanish population (N = 845) to determine the main drivers of carbon footprint for different religious groups. External factors (i.e., socioeconomic) and internal ones related to climate change knowledge, commitment, and intractability, on the one hand, and value orientation, nature-relatedness, and the main motivation to conserve nature on the other hand, were analysed. Intergroup differences in the personal carbon footprint were found, especially based on sex, age group, and type of work among external factors and value orientation, the main motivation for conserving nature and climate change perceived commitment within the internals. Intragroup differences for food carbon footprint were also observed, as follows: the main motivation to conserve nature and the level of commitment implied differences among Catholic believers, whereas value orientation and the level of commitment implied differences among non-believers. Our conclusions suggest, on the one hand, the importance of examining the religion-mitigation link in a socio-psychological framework and, on the other, the need for further study within groups to promote better behavioural responses to climate change.

Links between Climate Change Knowledge, Perception and Action: Impacts on Personal Carbon Footprint

The current understanding of determinants of climate action and mitigation behaviour is largely based on measures of climate change including concerns, attitudes and beliefs. However, few studies have shown the actual effects of external and internal drivers on citizens’ lifestyles related to climate change, particularly in terms of their carbon footprint (CF). A questionnaire (N = 845) assessing the impact of potential explanation factors for personal CF was carried out in Spain. The study showed the importance of better understanding the factors affecting citizen’s consumption and climate change mitigation policies. Internal factors were not very explicative. Knowledge was linked to clothing and perceived commitment to food, with both sectors being more directly linked to personal choices than other CF sections. Both accounted for 40% of personal emissions. Frequency of action was not shown to be significantly related to any CF section. External factors, such as income, level of studies, age and type of work, were found to be more important than internal drivers in explaining personal CF, particularly type of work, age and income, which were linked to all CF sectors but household energy. Sex was highly associated to clothing, but also significant for transport. Political orientation was not found to be linked to any section of personal CF.