A proper exploitation of biogas is key to recovering energy from biowaste in the framework a circular economy and environmental sustainability sector. The main obstacle widespread efficient utilization posed by some trace compounds (mainly sulfides siloxanes), which can have detrimental effect on downstream gas users (e.g., combustion engines, fuel cells, upgrading, grid injection). Several pur...

Abstract The public sector has a vital role in reducing emissions from construction activities and achieving environmental goals. Therefore, it is to investigate the opportunities for industry’s through its procurement practices. This paper explores challenges of using green (GPP) orchestrate stakeholder ecosystems, including buyers, companies, subcontractors, equipment suppliers, achieve zero-...

This article constitutes a new contribution to the analysis of overlapping instruments to cover the same emission sources. Using both an analytical and a numerical model, we show that when the risk that the CO2 price drops to zero and the political unavailability of a CO2 tax (at least in the European Union) are taken into account, it can be socially optimal to implement an additional instrumen...

In this paper, we study the optical properties of single defects emitting in the near infrared in nanodiamonds at liquid helium temperature. The nanodiamonds are synthesized using a microwave chemical vapor deposition method followed by nickel implantation and annealing. We show that single defects exhibit several striking features at cryogenic temperature: the photoluminescence is strongly con...

We present Far Ultraviolet Spectroscopic Explorer (FUSE) observations of a Balmer filament in the northeast region of the Cygnus Loop supernova remnant. The data consist of one spectrum obtained through the 30 × 30 (LWRS) aperture and three spectra at adjacent positions obtained through the 4 × 20 (MDRS) aperture. The nonradiative shocks in the region giving rise to these faint optical filament...

The topics of zero-emission/energy buildings and electric mobility are increasingly being discussed as solutions to alleviate the environmental burden caused by energy consumption CO2 emissions in both sectors. This study investigates a zero-energy hotel building supported hybrid ocean renewable system, which interacts with several zero-emission boats. Nine different combinations floating photo...

For achieving net-zero emissions by 2050, countries worldwide are committed to setting ambitious carbon reduction targets. In 2022, the officially published report, “Taiwan’s Pathway Net-Zero Emissions in 2050”, sets out a comprehensive transition plan based on four fundamental strategies: energy, industrial, lifestyle, and social. This will likely entail an infrastructure transformation all se...

Control of thermal radiation at high temperatures is vital for waste heat recovery and for high-efficiency thermophotovoltaic (TPV) conversion. Previously, structural resonances utilizing gratings, thin film resonances, metasurfaces and photonic crystals were used to spectrally control thermal emission, often requiring lithographic structuring of the surface and causing significant angle depend...

The 2015 Paris Agreement outlined the goal to limit temperature increases below 2°C, preferably 1.5°C. In response, several countries have announced net-zero emission pledges (NZEP). credibility of these varies because committed different target years. Moreover, some outline sectoral as opposed economy-wide targets and vary in how they monitor progress. To assess pledge’s credibility, we create...

Methyl bromide (CH3Br) is a trace gas involved in stratospheric ozone depletion with both anthropogenic and natural sources. Estimates of natural source strengths are highly uncertain. In this study, >320 highly temporally and spatially resolved measurements of CH3Br emissions from a salt marsh in Scotland (56o00 N, 2o35 W) were made during one year using eight static enclosures. Net emissions ...