In this article, the authors present the results of research undertaken in relation to the situation regarding renewable and non-renewable energy reserves in the European Union, as well as the way in which this energy is consumed. The general view presented regarding energy resources around the world is that oil, natural gas and coal are being exhausted at an alarming rate and if we continue to exploit these oil resources at our current pace, we will see a massive depletion in energy resources over the next 41 years. The authors also focus on representing the intensity of greenhouse gas emissions from energy consumption, demonstrating that it has shown a slight decrease in the European Union. The resources and consumption of renewable and non-renewable energy were analyzed in close interdependence with these indicators under study, such as final energy consumption, renewable energy and total energy production, in order to give a correct interpretation of how these resources are used. At the same time, starting from the fact that the world economy is currently facing a cluster of crises (pandemic, financial-economic, energy, general resources), it was deemed important to highlight the fact that the total production of energy demonstrated an oscillating trend during this period.

The COVID-19 pandemic crisis, which was triggered in 2019 with oscillating evolution in 2020 and 2021, was a factor that has had dramatic effects on the economic growth of countries worldwide. In the context of the pandemic crisis, population health has deteriorated; education and economic activity in all the countries around the world have been affected. The main purpose of this paper is to highlight the special situations that humanity is experiencing as a result of the unprecedented effects that the COVID-19 crisis is having on the socioeconomic evolution. Specific statistical econometric methods (such as analysis of linear correlations, multiple linear regression, analysis based on dynamics indicators, and spectral analysis, comparability based on indices) were applied to highlight the evolution and future prospects of the COVID-19 virus worldwide. The COVID-19 crisis has generated another major issue for mankind, along with global warming and the energy transition, namely, population health. For this reason, in this study, we focused on the impact of the COVID-19 crisis on population health in a broader context; the sustained growth of populations in developing countries and aging populations in developed economies.

Tourism is one of the consistent branches of the national economy, which can ensure some concrete results and a tailor-made contribution to the formation of the Gross Domestic Product. The tourism industry is also called invisible trade in the sense that, although it does not export goods and services, by practicing it, by developing it, it ensures consistent revenues to the state budget, but also ensures the possibility of increasing Gross Domestic Product. Analysing the current situation of the health and economic-financial crisis, it is found that in 2020 HoReCa, the tourism industry, complementary services have decreased alarmingly. Against this background, tourism has reduced its contribution to the formation of the Gross Domestic Product, which can lead to an even greater decrease. Investments in tourism are eroding. There is no possibility of refinancing despite support measures provided by the authorities. We say in spite of some measures granted because the postponement of some payments, the postponement of some credits, the transition to technical unemployment and others will be coupled later with other measures with almost devastating effect for the Romanian economy. Thus, many jobs will be lost. On the other hand, tourism companies will not be able to move from technical unemployment to normal activity and give a minimum of six months to those in this situation. The tourist market practically does not exist because there are only sequential possibilities in which it takes place, but especially under the rule of business activities, which are also considered tourist activities. The tourist activity materialized through arrivals, overnight stays, arrivals and departures has decreased steadily and this result mainly from the data subject to the study we mentioned. It is necessary to interpret these data and possibly find ways to recover.

The economic activity of a country is achieved both by domestic activity and by international economic and technical-scientific exchanges. International commercial activity is a necessary one nowadays. This is because there is no state capable of performing an autarchic activity. Regardless of of the technical, scientific, resource, and level of development, any state needs to participate in international economic, technical and scientific exchanges. Through international economic exchanges, the need for resources, means of production, labor resources or goods and services is completed. Also in this economic activity of international exchanges is realized the capitalization of surplus production, goods and services, surplus fixed capital, which is offered for export or as a possibility of cooperation in international projects. Thus, the activity of international exchanges is a necessity for each state. Under the conditions of the European Union, in which Romania is a member, there are a number of facilities and in this respect they are being implemented or are being implemented under the European Directive on trade without borders. In this respect, between the Community countries, in the exchange of goods and services, protection measures such as the import tax are no longer practiced and VAT is no longer charged. The international economic exchanges are a significant role in the final result materialized in the level of gross domestic product achieved in each period of time. The countries that import and do it to supplement domestic needs means that they spend part of the value realized in domestic activity to make imports. The exports are made with surplus goods and services that go to other states. In the European Union there are intra-community economic exchanges, complemented by extra-community international economic relations. The authors have studied this aspect and have found that intra-community economic relations have developed more intensively than non-EU economic relations over the last period. In other respects, states are grouped into two categories, ie states with surplus international economic relations, ie states that export more than imports and the second group, countries with activities in the international deficient relations, which imports more than just exports. Comparison between exports and imports results in net exports that may be a surplus or deficit. Romania has always been a deficit country since 1990 and it has to be analyzed in the sense that, due to the difference in favor of imports, part of the gross domestic product made in Romania diminishes with this deficit. The authors, by analyzing this data, highlight how the activity of international economic exchanges has evolved.

The authors of this article aim to highlight how current crises (health, economic and financial, energy, food, etc.) have an effect on domestic and, especially, international affairs. At the same time, the aim is to identify and specify how the crises we are facing are jeopardizing macroeconomic stability. A number of study authors on the trend of the world economy have already stated that the world economy is practically in recession. This conclusion was reached based on the fact that, in addition to the crises affecting the world situation, the effect of the pandemic Corona virus, and the Russian-Ukrainian war (Russian-Ukrainian armed conflict) which is xpected to be long-lasting. The prospect of a Russian-Ukrainian armed conflict leads to the conclusion that, at the European Union and individual level, each and every state will face difficulties with negative effects on maintaining macro-stability and the development of domestic and international affairs at a convenient pace. In order to determine these aspects, we set out to use the widest possible methodology of international comparisons, the use of statistical indicators calculated and obtained from the European Union, Eurostat, the National Institute of Statistics and the application of statistical-econometric methods / models to obtain the parameters that will form the basis of the future comparison and, especially, of establishing the evolutionary trend of the world, European economy and, especially in this case, of Romania.