Drought is one of the most difficult natural hazards to quantify and is divided into categories
(meteorological, agricultural, ecological and hydrological), which makes assessing recent …

Atmospheric carbon dioxide concentration ([CO2]) is increasing, which increases leaf‐scale
photosynthesis and intrinsic water‐use efficiency. These direct responses have the potential …

Droughts can have strong environmental and socio-economic impacts in the Mediterranean
region, in particular for countries relying on rain-fed agricultural production, but also in areas …

Because of human action, the Earth has entered an era where profound changes in the
global environment are creating novel conditions that will be discernable far into the future …

As the Anthropocene advances, there are few parts of Earth that have not been impacted by
human influence. Humans have had a long-sustained interaction with grassy ecosystems …

This review examines the role of the atmospheric evaporative demand (AED) in drought.
AED is a complex concept and here we discuss possible AED definitions, the subsequent …

Stomata control the flow of gases between plants and the atmosphere. This review is
centered on stomatal responses to elevated CO2 concentration and considers other key …

In the future, the Sahara and Sahelian regions could experience more rainfall than today as
a result of climate change. Wetter periods, termed African humid periods, occurred in the …

We review observational, experimental, and model results on how plants respond to
extreme climatic conditions induced by changing climatic variability. Distinguishing between …

Climatic changes, including altered precipitation regimes, will affect key ecosystem
processes, such as plant productivity and biodiversity for many terrestrial ecosystems. Past …