Weather forecasting requires knowledge of the laws of atmospheric movement. Apart from classic fluid mechanics, we must consider the rotational motion of our planet, the differential heating of its surface through the absorption of solar radiation, as well as water evaporation and condensation processes.

The successful design and implementation of hydroengineering projects crucially rests upon three collaborative pillars of research: field observations, physical models, and mathematical models.

What makes forest litter so important? How rapidly does it decompose? And how can it contribute to mitigating the effects of climate change?

Global warming is not a myth, there is solid scientific evidence for it. If humanity opts to ignore it, it will come to a catastrophic end.

O filarach wiedzy wykorzystywanej w analizach obecnych i przyszłych zmian środowiska, niezbędnych do realizacji inwestycji hydrotechnicznych.

Prognozowanie pogody wymaga znajomości praw rządzących ruchem atmosfery. Obok mechaniki płynów trzeba uwzględnić ruch obrotowy naszej planety, zróżnicowane nagrzewanie jej powierzchni wskutek pochłaniania promieniowania słonecznego, a także procesy parowania wody i kondensacji pary wodnej.

The Bulletin of the Polish Academy of Sciences: Technical Sciences (Bull.Pol. Ac.: Tech.) is published bimonthly by the Division IV Engineering Sciences of the Polish Academy of Sciences, since the beginning of the existence of the PAS in 1952. The journal is peer‐reviewed and is published both in printed and electronic form. It is established for the publication of original high quality papers from multidisciplinary Engineering sciences with the following topics preferred: Artificial and Computational Intelligence, Biomedical Engineering and Biotechnology, Civil Engineering, Control, Informatics and Robotics, Electronics, Telecommunication and Optoelectronics, Mechanical and Aeronautical Engineering, Thermodynamics, Material Science and Nanotechnology, Power Systems and Power Electronics.

Journal Metrics: JCR Impact Factor 2018: 1.361, 5 Year Impact Factor: 1.323, SCImago Journal Rank (SJR) 2017: 0.319, Source Normalized Impact per Paper (SNIP) 2017: 1.005, CiteScore 2017: 1.27, The Polish Ministry of Science and Higher Education 2017: 25 points.

Abbreviations/Acronym: Journal citation: Bull. Pol. Ac.: Tech., ISO: Bull. Pol. Acad. Sci.-Tech. Sci., JCR Abbrev: B POL ACAD SCI-TECH Acronym in the Editorial System: BPASTS.

Na czym polega proces rozkładu ściółki leśnej i jakie jest jego znaczenie dla ekosystemów leśnych? Czy w nadchodzącej przyszłości ciągle aktualne będzie stare powiedzenie: „Nie było nas, był las, nie będzie nas, będzie las”?