Final answer:
During our current era, Earth's climate has warmed significantly, largely due to human activities. This warming trend has led to a more humid climate in some regions. Additionally, the composition of Earth's atmosphere has been altered by the development of life and human impact.
Step-by-step explanation:
The Earth has undergone many changes during our current era, particularly in terms of climate change. Since the Industrial Revolution, global temperatures have steadily increased largely due to human activities that release greenhouse gases into the atmosphere. This has caused a warming trend and brought about more humid conditions in many regions of the world. Furthermore, the development and evolution of life have altered the composition and temperature of our planet's atmosphere over time. The levels of carbon dioxide have declined as plants have proliferated, drawing down this gas through the process of photosynthesis. Additionally, human impact has resulted in a significant transformation of the Earth's surface and ecosystems, with a sharp acceleration over the last few centuries. It is also noteworthy that events such as volcanic eruptions, changes in solar intensity, earthquakes, and changes in Earth's orbit have contributed to changes in our planet, but these are not limited to the current era and have been ongoing throughout Earth's history.