Nanomaterials (NMs) with structural, optical, and dielectric properties are called functional or smart materials and have favorable applications in various fields of material science and nanotechnology. Pure and Co-doped MgAl2O4 were synthesized by using the sol–gel combustion method. A systematic investigation was carried out to understand the effects of the Co concentration on the crystalline phase, morphology, and optical and dielectric properties of Co-doped MgAl2O4. X-ray diffraction confirmed the cubic spinel structure with the Fd3̅m space group, and there was no impurity phase, while the surface morphology of the samples was investigated by scanning electron microscopy. The dielectric properties of the synthesized material are investigated using an LCR meter with respect to the variation in frequency (1–2 GHz), and their elemental composition has been examined through the energy-dispersive X-ray technique. The existence of the metal–oxygen Mg–Al–O bond has been confirmed by Fourier transform infrared spectroscopy. The value of the dielectric constant decreases with the increasing frequency and Co concentration. The optical behaviors of the Co2+-doped MgAl2O4 reveal that the optical properties were enhanced by increasing the cobalt concentration, which ultimately led to a narrower band gap, which make them exquisite and suitable for energy storage applications, especially for super capacitors. This work aims to focus on the effect of cobalt ions in different concentrations on structural, optical, and dielectric properties.

Climate change causes global damage, ranging from weather patterns leading to drought and flooding to completely crippling a nation’s economy. These secondary effects of climate change are primarily caused by the developed nations’ unfathomable carbon emissions. Hence, there should be a collaborative effort from these nations to lessen the damage to under-developing countries. This paper aims to analyze the role of international & domestic media in the coverage of the climate crisis in Pakistan and how the dissemination of information is lacking in the media. Pakistan is one of the worst affected countries due to climate change, ironically being one of the least carbon emitters. The people of Pakistan need to be better informed about the consequences of changing climate, and this lack of awareness causes serious problems. The responsibility of spreading accurate information regarding weak policies, the impact of increasing carbon emission rates, and secondary complications caused to underdeveloped countries falls on the shoulders of domestic and international media outlets. Through qualitative research methodology, this study aims to prove how the media lags in disseminating the necessary facts and information to the public. In addition to highlighting the consistent failures of international media outlets when covering climate change, recommendations and actions are provided for courses of action that can be taken to remedy this problem. Keywords: Climate change, flood 2022, the role of media, domestic media, international media