In the entire world, one of the most visible consequences of climate change is an increase in the intensity and frequency of extreme weather. Climate change refers to the variations in behavioral patterns of the earth's climate attributes over time. 

One of the major causes of extreme the extreme weather is the greenhouse gas emissions. Greenhouse gases are the main culprits observed with extreme weather since the industrial revolution era. Several of these major greenhouse gases occur naturally but the increases in their atmospheric concentrations over the last 250yrs are largely due to human actions.

The other cause of extreme weather is temperature. The IPCC (Intergovernmental Panel on Climate Change) assessment report results in 2001 indicate an increase in global average temperature which gears up heat in the climate system resulting in more occurring and intensive weather events, e.g. storm activity. This report also discloses that the global average air temperature has increased to 1.21°C over the 21st century. 

Global sea levels are also rising as a result of human caused global warming with recent rates being higher over the past 2.5plus years.  A number of potential climate change effects been identified here are rising sea levels, changing rainfall patterns and temperature rise. In Lesotho extreme rainfalls are always experienced in Summer; rivers overflow and houses fall due to extremely wet surfaces.

As reported by the IPCC, it is very likely that heat waves and heavy precipitation events will continue to become frequent and moreover, the future tropical cyclones will likely be more intense; having larger peak winged speeds.

Extreme weather can be defined as daily high temperatures, extreme daily rainfall amounts, large areas experiencing unusual warm monthly temperatures or even storm events.

Below is the picture of the Caledon river passing through Lesotho full of water after a certain heavy rainfall.