WILDFIRES

Copyright infringement is not intended

Context: Forest fires are becoming more common and wildfires are destroying nearly twice as much tree cover globally as they did in 2001, according to a new analysis. An additional 7.4 million acres of forest are getting burnt annually now — an area roughly the size of Belgium.

More on the news:

• Fires account for a growing share of forest loss, according to the researchby World Resources Institute (WRI), a global research non-profit.
• Climate change is driving more intense and widespread wildfires by fueling more extreme heat and deepening drought, which dries out forests, the researchers said.
• Extreme heat waves are already five times more likely today than they were 150 years ago and are expected to become even more frequent as the planet continues to warm.
• Wildfires were responsible for over a third of global tree cover loss in 2021, while they were accountable for around a fifth of the loss in 2001
• 2021 was one of the worst years for forest fires since the turn of the century, causing an alarming 9.3 million hectares of tree cover loss globally.
• Data alone cannot solve this issue, but the new tree cover loss from fires data on Global Forest Watch, along with other fire monitoring data, can help us track fire activity to identify trends and develop targeted, long-term responses, WRI said. 

• The analysis was based on a recent study, Global Trends of Forest Loss Due to Fire From 2001 to 2019. The study found a “near-uniform” growth in fire-related tree loss across the globe, from the Amazon to Australia to Siberia.
• The results of the study quantify the increasing threat of fires to remaining forests globally. It may improve the modelling of future forest fire loss rates under various climate change and development scenarios.
• Boreal forests accounted for roughly 70 per cent of fire-related losses over the last two decades, the study found. These forests are still full of life that’s adapted to withstand frigid temperatures year-round. These woods are full of deciduous trees and conifers and cover vast expanses in Canada, Alaska and Russia.
• Boreal woodlands saw burned areas grow by 270,000 acres per year, on average, over the last 20 years, according to WRI. These forests are a major carbon sink, with much of that carbon stored in permafrost. As forests burn and permafrost melts, they are unleashing huge stores of greenhouse gases.
• Though fires are responsible for less than 10 per cent of all tree cover loss in the tropics, more common drivers like commodity-driven deforestation and shifting agriculture make tropical forests less resilient and more susceptible to fires.
• Deforestation and forest degradation associated with agricultural expansion lead to higher temperatures and dried out vegetation, according to WRI. 

Examples of Indigenous communities practice that can be globally used to control wildfires:

• Australian Aborigines’ use of fire to create mosaic landscapes for hunting and gathering purposes also broke up the continuity of fuels and so inhibited the extensive spread of wildfires.
• Canadian First Nations used fire as a way of managing their territory.
• Indigenous peoples from the Venezuelan, Brazilian and Guyanese Amazon as well as the Brazilian Cerrado have used fire for subsistence activities and the control of savanna plant fuel levels to prevent the spread of wildfires into adjacent forests.
• Brazil’s Xavante Amerindians, are trained in total fire suppression.
• The Pemón in south-east Venezuela use patch mosaic burning to protect and sustain forests in Canaima National Park, which helps reduce the impacts of wildfires in the region.
• In South America, indigenous knowledge is combined with science to protect indigenous territories from wildfire incidents.

UNEP Fire Ready Formula

The United Nations Environment Programme (UNEP), called on global governments to adopt a new ‘Fire Ready Formula,’ as it warned that incidences of wildfires would rise in the future.

Key highlights of new formula:

• It envisages that 66 per cent of spending be devoted to planning, prevention, preparedness and recovery. The remaining 34 per cent can be spent on response.
• Integrated wildfire managementis key to adapting to current and future changes in global wildfire risk.
• There is a need to invest more in fire risk reduction, work with local communities and strengthen global commitment to fight climate change.
• Achieving and sustaining adaptive land and fire management requires a combination of policies, a legal framework and incentives that encourage appropriate land and fire use.

                                                                            Source: UNEP report

What was the need for this new formula?

• UNEP report projected that the number of wildfires is likely to increase by up to 14 per cent by 2030. It is projected to spike by 33 per cent by 2050. It would rise by 52 per cent by 2100.
• The prevalence and behaviour of wildfires is changingdue to numerous factors including, but not limited to, climate change.
• Change in land-use and land management practicesare also responsible for the increasing risks of wildfires.
• The true cost of wildfires — financial, social, and environmental— extends for days, weeks, and even years after the flames subside.

What causes the wildfire?

• Natural causes: lightening, soaring temperature, friction between dry leaves, etc. causes forest fires
• Anthropogenic causes:
• Poachers set a small patch of forest on fire to divert the wild animals which many times leads to such fires.
• Jungle areas are also set on fire by villagers to clear the dry leaves on the ground for easy collection of mahua flowers.
• Villagers burn patches of sal trees in the belief that it will lead to better growth when planted again.

How much damage do the forest fires cause?

• Forest fires can cause a lot of damage to the regeneration in the forests and their productivity.
• Moisture-loving trees such as Oaks and Deodars may give way to other species and exotic weeds.
• Forests help maintain aquifers and continuous flow of streams and springs, and provide firewood, fodder and non-timber produce to the local communities – all these capacities may get adversely affected in case of a fire.
• Forest fires may destroy organic matter in the soil and expose the top layer to erosion.
• They may also impact the wildlife by burning eggs, killing young animals and driving the adult animals away from their safe haven.
• Sometimes, a forest fire may get out of control and extend to human settlements, thus posing danger to human life and property.

What can be done to prevent and control forest fires?

• Forecasting fire-prone daysusing meteorological data
• clearing camping sites of dried biomass
• early burning of dry litter on the forest floor
• growing strips of fire-hardy plant species within the forest and
• creating fire lines in the forests are some of the methods to prevent fires.
• fire linesare strips in the forest kept clear of vegetation to prevent the fire from spreading.

In 1999, the state government notified forest fire rules which restrict or regulate certain activities in and around forest areas such as lighting a fire, burning

https://www.downtoearth.org.in/news/climate-change/wildfires-destroy-twice-the-forest-cover-today-compared-to-2-decades-ago-84537