From oil digger to energy transition enabler:the critical role of exploration geosciences education in Europe

Abstract Recent disruptions of raw material value chains during the COVID-19 pandemic have highlighted Europe’s depency on imports of metals and minerals. Meanwhile, the European Commission is establishing ambitious policy initiatives, aiming at making Europe climate neutral in 2050. In this contribution, we emphasise the critical role of geosciences education in this energy transition, in forming the next generation of mining professionals. In the Nordic countries, active industry–university collaboration in one of the most active mining hubs in Europe has allowed frequent student–industry interaction, access to real-life learning environments, and development of specialised educational modules. These have been made accessible to exchange students from other European countries via exchange programmes and innovative digipedagogical learning tools

Surface modification of cured inorganic foams with cationic cellulose nanocrystals and their use as reactive filter media for anionic dye removal

Abstract In this work, a surface cationized inorganic–organic hybrid foam was produced from porous geopolymer (GP) and cellulose nanocrystals (CNCs). GPs were synthesized from alkali-activated metakaolin using H₂O₂ as a blowing agent and hexadecyltrimethylammonium bromide (CTAB) as a surfactant. These highly porous GPs were combined at pH 7.5 with cationic CNCs that had been synthesized from dissolving pulp through periodate oxidation followed by cationization in a deep eutectic solvent. The GP-CNC hybrid foams were employed as reactive filters in the removal of the anionic dye, methyl orange (MO; 5–10 mg/L, pH 7). The effects of a mild acid wash and thermal treatments on the structure, properties, and adsorption capacity of the GPs with CNCs and MO were investigated. The CNCs aligned as films and filaments on the surfaces of the neutralized GPs and the addition of CNCs improved MO removal by up to 84% compared with the reference sample. In addition, CTAB was found to disrupt the attachment of CNCs on the pores and improve adsorption of MO in the GPs with and without CNCs

Assessing the timing of mining investment under tax policy uncertainty: the case of the Asia-Pacific region

Mining involves the discovery, extraction, and processing of non-renewable resources. The potential of mining revenues to contribute to national economic development is well known, but the allocation of mineral wealth and the concern of increasing resource scarcity have become issues of debate in the mining industry. The purpose of this study is to introduce the binomial decision tree analysis, which is a new approach to mining investment decisions. The examples used examine the impact by a policy change. Using three mining projects in the Asia-Pacific, in Australia, Indonesia and Papua New Guinea, findings about options for the investor suggest it is sometimes better to wait for a more suitable time to invest. Using such knowledge provides the potential to change the investment climate in mining